Home / 97,854.40-135,028.38-57,581.20

Finding the Fourth Proportional to 97,854.40, 135,028.38 and 57,581.20

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Solution

The fourth proportional to 97,854.40, 135,028.38 and 57,581.20 is: 79,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,854.40 : 135,028.38 = 57,581.20 : x
  2. Step 2: Convert to fraction form
    97,854.40/135,028.38 = 57,581.20/x
  3. Step 3: Cross multiply
    97,854.40x = 135,028.38 × 57,581.20
  4. Step 4: Simplify right side
    97,854.40x = 7,775,096,154.46
  5. Step 5: Solve for x
    x = 7,775,096,154.46/97,854.40
  6. Step 6: Final answer
    x = 79,455.76

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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.