Home / 47,812.60-71,718.90-40,209.40

Finding the Fourth Proportional to 47,812.60, 71,718.90 and 40,209.40

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Solution

The fourth proportional to 47,812.60, 71,718.90 and 40,209.40 is: 60,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,812.60 : 71,718.90 = 40,209.40 : x
  2. Step 2: Convert to fraction form
    47,812.60/71,718.90 = 40,209.40/x
  3. Step 3: Cross multiply
    47,812.60x = 71,718.90 × 40,209.40
  4. Step 4: Simplify right side
    47,812.60x = 2,883,773,937.66
  5. Step 5: Solve for x
    x = 2,883,773,937.66/47,812.60
  6. Step 6: Final answer
    x = 60,314.10

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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.