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Finding the Fourth Proportional to 60,694.40, 91,041.60 and 39,699.20

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Solution

The fourth proportional to 60,694.40, 91,041.60 and 39,699.20 is: 59,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,694.40 : 91,041.60 = 39,699.20 : x
  2. Step 2: Convert to fraction form
    60,694.40/91,041.60 = 39,699.20/x
  3. Step 3: Cross multiply
    60,694.40x = 91,041.60 × 39,699.20
  4. Step 4: Simplify right side
    60,694.40x = 3,614,278,686.72
  5. Step 5: Solve for x
    x = 3,614,278,686.72/60,694.40
  6. Step 6: Final answer
    x = 59,548.80

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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.