Home / 66,359.90-91,570.02-40,862.18

Finding the Fourth Proportional to 66,359.90, 91,570.02 and 40,862.18

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Solution

The fourth proportional to 66,359.90, 91,570.02 and 40,862.18 is: 56,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,359.90 : 91,570.02 = 40,862.18 : x
  2. Step 2: Convert to fraction form
    66,359.90/91,570.02 = 40,862.18/x
  3. Step 3: Cross multiply
    66,359.90x = 91,570.02 × 40,862.18
  4. Step 4: Simplify right side
    66,359.90x = 3,741,750,639.84
  5. Step 5: Solve for x
    x = 3,741,750,639.84/66,359.90
  6. Step 6: Final answer
    x = 56,385.72

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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.