Home / 78,062.04-117,108.45-25,457.40

Finding the Fourth Proportional to 78,062.04, 117,108.45 and 25,457.40

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Solution

The fourth proportional to 78,062.04, 117,108.45 and 25,457.40 is: 38,191.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,062.04 : 117,108.45 = 25,457.40 : x
  2. Step 2: Convert to fraction form
    78,062.04/117,108.45 = 25,457.40/x
  3. Step 3: Cross multiply
    78,062.04x = 117,108.45 × 25,457.40
  4. Step 4: Simplify right side
    78,062.04x = 2,981,276,655.03
  5. Step 5: Solve for x
    x = 2,981,276,655.03/78,062.04
  6. Step 6: Final answer
    x = 38,191.12

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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.