Home / 45,001.09-67,500.79-13,432.57

Finding the Fourth Proportional to 45,001.09, 67,500.79 and 13,432.57

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Solution

The fourth proportional to 45,001.09, 67,500.79 and 13,432.57 is: 20,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,001.09 : 67,500.79 = 13,432.57 : x
  2. Step 2: Convert to fraction form
    45,001.09/67,500.79 = 13,432.57/x
  3. Step 3: Cross multiply
    45,001.09x = 67,500.79 × 13,432.57
  4. Step 4: Simplify right side
    45,001.09x = 906,708,959.96
  5. Step 5: Solve for x
    x = 906,708,959.96/45,001.09
  6. Step 6: Final answer
    x = 20,148.60

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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.