Home / 66,782.76-92,154.96-38,490.72

Finding the Fourth Proportional to 66,782.76, 92,154.96 and 38,490.72

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Solution

The fourth proportional to 66,782.76, 92,154.96 and 38,490.72 is: 53,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,782.76 : 92,154.96 = 38,490.72 : x
  2. Step 2: Convert to fraction form
    66,782.76/92,154.96 = 38,490.72/x
  3. Step 3: Cross multiply
    66,782.76x = 92,154.96 × 38,490.72
  4. Step 4: Simplify right side
    66,782.76x = 3,547,110,761.97
  5. Step 5: Solve for x
    x = 3,547,110,761.97/66,782.76
  6. Step 6: Final answer
    x = 53,114.17

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1.5x scale

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.