Home / 56,129.28-84,158.40-31,522.56

Finding the Fourth Proportional to 56,129.28, 84,158.40 and 31,522.56

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Solution

The fourth proportional to 56,129.28, 84,158.40 and 31,522.56 is: 47,263.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.28 : 84,158.40 = 31,522.56 : x
  2. Step 2: Convert to fraction form
    56,129.28/84,158.40 = 31,522.56/x
  3. Step 3: Cross multiply
    56,129.28x = 84,158.40 × 31,522.56
  4. Step 4: Simplify right side
    56,129.28x = 2,652,888,213.50
  5. Step 5: Solve for x
    x = 2,652,888,213.50/56,129.28
  6. Step 6: Final answer
    x = 47,263.89

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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.