Home / 53,689.71-80,479.20-38,861.85

Finding the Fourth Proportional to 53,689.71, 80,479.20 and 38,861.85

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Solution

The fourth proportional to 53,689.71, 80,479.20 and 38,861.85 is: 58,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,689.71 : 80,479.20 = 38,861.85 : x
  2. Step 2: Convert to fraction form
    53,689.71/80,479.20 = 38,861.85/x
  3. Step 3: Cross multiply
    53,689.71x = 80,479.20 × 38,861.85
  4. Step 4: Simplify right side
    53,689.71x = 3,127,570,598.52
  5. Step 5: Solve for x
    x = 3,127,570,598.52/53,689.71
  6. Step 6: Final answer
    x = 58,252.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.