Home / 67,129.68-92,641.32-38,454.60

Finding the Fourth Proportional to 67,129.68, 92,641.32 and 38,454.60

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Solution

The fourth proportional to 67,129.68, 92,641.32 and 38,454.60 is: 53,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,129.68 : 92,641.32 = 38,454.60 : x
  2. Step 2: Convert to fraction form
    67,129.68/92,641.32 = 38,454.60/x
  3. Step 3: Cross multiply
    67,129.68x = 92,641.32 × 38,454.60
  4. Step 4: Simplify right side
    67,129.68x = 3,562,484,904.07
  5. Step 5: Solve for x
    x = 3,562,484,904.07/67,129.68
  6. Step 6: Final answer
    x = 53,068.70

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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.