Home / 87,881.33-121,275.54-47,594.17

Finding the Fourth Proportional to 87,881.33, 121,275.54 and 47,594.17

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Solution

The fourth proportional to 87,881.33, 121,275.54 and 47,594.17 is: 65,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,881.33 : 121,275.54 = 47,594.17 : x
  2. Step 2: Convert to fraction form
    87,881.33/121,275.54 = 47,594.17/x
  3. Step 3: Cross multiply
    87,881.33x = 121,275.54 × 47,594.17
  4. Step 4: Simplify right side
    87,881.33x = 5,772,008,542.89
  5. Step 5: Solve for x
    x = 5,772,008,542.89/87,881.33
  6. Step 6: Final answer
    x = 65,679.57

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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.