Home / 48,900.38-67,472.15-28,749.91

Finding the Fourth Proportional to 48,900.38, 67,472.15 and 28,749.91

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Solution

The fourth proportional to 48,900.38, 67,472.15 and 28,749.91 is: 39,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,900.38 : 67,472.15 = 28,749.91 : x
  2. Step 2: Convert to fraction form
    48,900.38/67,472.15 = 28,749.91/x
  3. Step 3: Cross multiply
    48,900.38x = 67,472.15 × 28,749.91
  4. Step 4: Simplify right side
    48,900.38x = 1,939,817,758.90
  5. Step 5: Solve for x
    x = 1,939,817,758.90/48,900.38
  6. Step 6: Final answer
    x = 39,668.77

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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.