Home / 87,868.95-121,259.13-47,582.71

Finding the Fourth Proportional to 87,868.95, 121,259.13 and 47,582.71

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Solution

The fourth proportional to 87,868.95, 121,259.13 and 47,582.71 is: 65,664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.95 : 121,259.13 = 47,582.71 : x
  2. Step 2: Convert to fraction form
    87,868.95/121,259.13 = 47,582.71/x
  3. Step 3: Cross multiply
    87,868.95x = 121,259.13 × 47,582.71
  4. Step 4: Simplify right side
    87,868.95x = 5,769,837,536.06
  5. Step 5: Solve for x
    x = 5,769,837,536.06/87,868.95
  6. Step 6: Final answer
    x = 65,664.13

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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.