Home / 87,430.32-120,664.08-49,710.24

Finding the Fourth Proportional to 87,430.32, 120,664.08 and 49,710.24

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Solution

The fourth proportional to 87,430.32, 120,664.08 and 49,710.24 is: 68,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,430.32 : 120,664.08 = 49,710.24 : x
  2. Step 2: Convert to fraction form
    87,430.32/120,664.08 = 49,710.24/x
  3. Step 3: Cross multiply
    87,430.32x = 120,664.08 × 49,710.24
  4. Step 4: Simplify right side
    87,430.32x = 5,998,240,376.18
  5. Step 5: Solve for x
    x = 5,998,240,376.18/87,430.32
  6. Step 6: Final answer
    x = 68,605.95

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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.