Home / 77,474.08-106,909.74-43,479.40

Finding the Fourth Proportional to 77,474.08, 106,909.74 and 43,479.40

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Solution

The fourth proportional to 77,474.08, 106,909.74 and 43,479.40 is: 59,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,474.08 : 106,909.74 = 43,479.40 : x
  2. Step 2: Convert to fraction form
    77,474.08/106,909.74 = 43,479.40/x
  3. Step 3: Cross multiply
    77,474.08x = 106,909.74 × 43,479.40
  4. Step 4: Simplify right side
    77,474.08x = 4,648,371,349.36
  5. Step 5: Solve for x
    x = 4,648,371,349.36/77,474.08
  6. Step 6: Final answer
    x = 59,999.05

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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.