Home / 56,624.68-78,139.92-31,475.80

Finding the Fourth Proportional to 56,624.68, 78,139.92 and 31,475.80

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Solution

The fourth proportional to 56,624.68, 78,139.92 and 31,475.80 is: 43,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,624.68 : 78,139.92 = 31,475.80 : x
  2. Step 2: Convert to fraction form
    56,624.68/78,139.92 = 31,475.80/x
  3. Step 3: Cross multiply
    56,624.68x = 78,139.92 × 31,475.80
  4. Step 4: Simplify right side
    56,624.68x = 2,459,516,493.94
  5. Step 5: Solve for x
    x = 2,459,516,493.94/56,624.68
  6. Step 6: Final answer
    x = 43,435.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.