Home / 87,809.13-121,176.59-47,523.20

Finding the Fourth Proportional to 87,809.13, 121,176.59 and 47,523.20

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Solution

The fourth proportional to 87,809.13, 121,176.59 and 47,523.20 is: 65,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.13 : 121,176.59 = 47,523.20 : x
  2. Step 2: Convert to fraction form
    87,809.13/121,176.59 = 47,523.20/x
  3. Step 3: Cross multiply
    87,809.13x = 121,176.59 × 47,523.20
  4. Step 4: Simplify right side
    87,809.13x = 5,758,698,478.39
  5. Step 5: Solve for x
    x = 5,758,698,478.39/87,809.13
  6. Step 6: Final answer
    x = 65,582.00

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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.