Home / 90,681,029.77-125,141,064.50-49,427,833.45

Finding the Fourth Proportional to 90,681,029.77, 125,141,064.50 and 49,427,833.45

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Solution

The fourth proportional to 90,681,029.77, 125,141,064.50 and 49,427,833.45 is: 68,211,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,681,029.77 : 125,141,064.50 = 49,427,833.45 : x
  2. Step 2: Convert to fraction form
    90,681,029.77/125,141,064.50 = 49,427,833.45/x
  3. Step 3: Cross multiply
    90,681,029.77x = 125,141,064.50 × 49,427,833.45
  4. Step 4: Simplify right side
    90,681,029.77x = 6,185,451,693,861,708
  5. Step 5: Solve for x
    x = 6,185,451,693,861,708/90,681,029.77
  6. Step 6: Final answer
    x = 68,211,087.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.