Home / 87,955.59-121,377.35-47,669.03

Finding the Fourth Proportional to 87,955.59, 121,377.35 and 47,669.03

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Solution

The fourth proportional to 87,955.59, 121,377.35 and 47,669.03 is: 65,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,955.59 : 121,377.35 = 47,669.03 : x
  2. Step 2: Convert to fraction form
    87,955.59/121,377.35 = 47,669.03/x
  3. Step 3: Cross multiply
    87,955.59x = 121,377.35 × 47,669.03
  4. Step 4: Simplify right side
    87,955.59x = 5,785,940,538.47
  5. Step 5: Solve for x
    x = 5,785,940,538.47/87,955.59
  6. Step 6: Final answer
    x = 65,782.52

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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.