Home / 78,117.48-117,097.92-38,703.24

Finding the Fourth Proportional to 78,117.48, 117,097.92 and 38,703.24

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Solution

The fourth proportional to 78,117.48, 117,097.92 and 38,703.24 is: 58,016.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,117.48 : 117,097.92 = 38,703.24 : x
  2. Step 2: Convert to fraction form
    78,117.48/117,097.92 = 38,703.24/x
  3. Step 3: Cross multiply
    78,117.48x = 117,097.92 × 38,703.24
  4. Step 4: Simplify right side
    78,117.48x = 4,532,068,901.26
  5. Step 5: Solve for x
    x = 4,532,068,901.26/78,117.48
  6. Step 6: Final answer
    x = 58,016.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.