Home / 66,387.36-99,542.70-22,002.15

Finding the Fourth Proportional to 66,387.36, 99,542.70 and 22,002.15

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Solution

The fourth proportional to 66,387.36, 99,542.70 and 22,002.15 is: 32,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,387.36 : 99,542.70 = 22,002.15 : x
  2. Step 2: Convert to fraction form
    66,387.36/99,542.70 = 22,002.15/x
  3. Step 3: Cross multiply
    66,387.36x = 99,542.70 × 22,002.15
  4. Step 4: Simplify right side
    66,387.36x = 2,190,153,416.81
  5. Step 5: Solve for x
    x = 2,190,153,416.81/66,387.36
  6. Step 6: Final answer
    x = 32,990.52

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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.