Home / 91,720.20-137,580.30-44,963.40

Finding the Fourth Proportional to 91,720.20, 137,580.30 and 44,963.40

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Solution

The fourth proportional to 91,720.20, 137,580.30 and 44,963.40 is: 67,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,720.20 : 137,580.30 = 44,963.40 : x
  2. Step 2: Convert to fraction form
    91,720.20/137,580.30 = 44,963.40/x
  3. Step 3: Cross multiply
    91,720.20x = 137,580.30 × 44,963.40
  4. Step 4: Simplify right side
    91,720.20x = 6,186,078,061.02
  5. Step 5: Solve for x
    x = 6,186,078,061.02/91,720.20
  6. Step 6: Final answer
    x = 67,445.10

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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.