Home / 87,038.46-120,113.01-49,312.71

Finding the Fourth Proportional to 87,038.46, 120,113.01 and 49,312.71

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Solution

The fourth proportional to 87,038.46, 120,113.01 and 49,312.71 is: 68,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,038.46 : 120,113.01 = 49,312.71 : x
  2. Step 2: Convert to fraction form
    87,038.46/120,113.01 = 49,312.71/x
  3. Step 3: Cross multiply
    87,038.46x = 120,113.01 × 49,312.71
  4. Step 4: Simplify right side
    87,038.46x = 5,923,098,029.36
  5. Step 5: Solve for x
    x = 5,923,098,029.36/87,038.46
  6. Step 6: Final answer
    x = 68,051.50

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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.