Home / 87,807.13-121,173.84-47,521.18

Finding the Fourth Proportional to 87,807.13, 121,173.84 and 47,521.18

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Solution

The fourth proportional to 87,807.13, 121,173.84 and 47,521.18 is: 65,579.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,807.13 : 121,173.84 = 47,521.18 : x
  2. Step 2: Convert to fraction form
    87,807.13/121,173.84 = 47,521.18/x
  3. Step 3: Cross multiply
    87,807.13x = 121,173.84 × 47,521.18
  4. Step 4: Simplify right side
    87,807.13x = 5,758,323,861.93
  5. Step 5: Solve for x
    x = 5,758,323,861.93/87,807.13
  6. Step 6: Final answer
    x = 65,579.23

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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.