Home / 75,700.47-113,568.29-25,781.00

Finding the Fourth Proportional to 75,700.47, 113,568.29 and 25,781.00

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Solution

The fourth proportional to 75,700.47, 113,568.29 and 25,781.00 is: 38,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,700.47 : 113,568.29 = 25,781.00 : x
  2. Step 2: Convert to fraction form
    75,700.47/113,568.29 = 25,781.00/x
  3. Step 3: Cross multiply
    75,700.47x = 113,568.29 × 25,781.00
  4. Step 4: Simplify right side
    75,700.47x = 2,927,903,387.74
  5. Step 5: Solve for x
    x = 2,927,903,387.74/75,700.47
  6. Step 6: Final answer
    x = 38,677.48

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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.