Home / 57,045.65-78,725.77-31,551.91

Finding the Fourth Proportional to 57,045.65, 78,725.77 and 31,551.91

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Solution

The fourth proportional to 57,045.65, 78,725.77 and 31,551.91 is: 43,543.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,045.65 : 78,725.77 = 31,551.91 : x
  2. Step 2: Convert to fraction form
    57,045.65/78,725.77 = 31,551.91/x
  3. Step 3: Cross multiply
    57,045.65x = 78,725.77 × 31,551.91
  4. Step 4: Simplify right side
    57,045.65x = 2,483,948,251.96
  5. Step 5: Solve for x
    x = 2,483,948,251.96/57,045.65
  6. Step 6: Final answer
    x = 43,543.17

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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.