Home / 90,728.91-125,222.36-52,483.95

Finding the Fourth Proportional to 90,728.91, 125,222.36 and 52,483.95

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Solution

The fourth proportional to 90,728.91, 125,222.36 and 52,483.95 is: 72,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,728.91 : 125,222.36 = 52,483.95 : x
  2. Step 2: Convert to fraction form
    90,728.91/125,222.36 = 52,483.95/x
  3. Step 3: Cross multiply
    90,728.91x = 125,222.36 × 52,483.95
  4. Step 4: Simplify right side
    90,728.91x = 6,572,163,818.70
  5. Step 5: Solve for x
    x = 6,572,163,818.70/90,728.91
  6. Step 6: Final answer
    x = 72,437.37

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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.