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Finding the Fourth Proportional to 40,710.88, 61,380.16 and 40,458.16

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Solution

The fourth proportional to 40,710.88, 61,380.16 and 40,458.16 is: 60,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,710.88 : 61,380.16 = 40,458.16 : x
  2. Step 2: Convert to fraction form
    40,710.88/61,380.16 = 40,458.16/x
  3. Step 3: Cross multiply
    40,710.88x = 61,380.16 × 40,458.16
  4. Step 4: Simplify right side
    40,710.88x = 2,483,328,334.11
  5. Step 5: Solve for x
    x = 2,483,328,334.11/40,710.88
  6. Step 6: Final answer
    x = 60,999.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.