Home / 60,351.12-90,505.08-20,897.64

Finding the Fourth Proportional to 60,351.12, 90,505.08 and 20,897.64

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Solution

The fourth proportional to 60,351.12, 90,505.08 and 20,897.64 is: 31,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,351.12 : 90,505.08 = 20,897.64 : x
  2. Step 2: Convert to fraction form
    60,351.12/90,505.08 = 20,897.64/x
  3. Step 3: Cross multiply
    60,351.12x = 90,505.08 × 20,897.64
  4. Step 4: Simplify right side
    60,351.12x = 1,891,342,580.01
  5. Step 5: Solve for x
    x = 1,891,342,580.01/60,351.12
  6. Step 6: Final answer
    x = 31,338.98

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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.