Home / 66,958.13-92,409.50-42,781.18

Finding the Fourth Proportional to 66,958.13, 92,409.50 and 42,781.18

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Solution

The fourth proportional to 66,958.13, 92,409.50 and 42,781.18 is: 59,042.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958.13 : 92,409.50 = 42,781.18 : x
  2. Step 2: Convert to fraction form
    66,958.13/92,409.50 = 42,781.18/x
  3. Step 3: Cross multiply
    66,958.13x = 92,409.50 × 42,781.18
  4. Step 4: Simplify right side
    66,958.13x = 3,953,387,453.21
  5. Step 5: Solve for x
    x = 3,953,387,453.21/66,958.13
  6. Step 6: Final answer
    x = 59,042.68

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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.