Home / 87,948.69-121,368.88-47,663.44

Finding the Fourth Proportional to 87,948.69, 121,368.88 and 47,663.44

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Solution

The fourth proportional to 87,948.69, 121,368.88 and 47,663.44 is: 65,775.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948.69 : 121,368.88 = 47,663.44 : x
  2. Step 2: Convert to fraction form
    87,948.69/121,368.88 = 47,663.44/x
  3. Step 3: Cross multiply
    87,948.69x = 121,368.88 × 47,663.44
  4. Step 4: Simplify right side
    87,948.69x = 5,784,858,085.90
  5. Step 5: Solve for x
    x = 5,784,858,085.90/87,948.69
  6. Step 6: Final answer
    x = 65,775.38

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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.