Home / 83,428.67-115,130.61-45,187.49

Finding the Fourth Proportional to 83,428.67, 115,130.61 and 45,187.49

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Solution

The fourth proportional to 83,428.67, 115,130.61 and 45,187.49 is: 62,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,428.67 : 115,130.61 = 45,187.49 : x
  2. Step 2: Convert to fraction form
    83,428.67/115,130.61 = 45,187.49/x
  3. Step 3: Cross multiply
    83,428.67x = 115,130.61 × 45,187.49
  4. Step 4: Simplify right side
    83,428.67x = 5,202,462,712.42
  5. Step 5: Solve for x
    x = 5,202,462,712.42/83,428.67
  6. Step 6: Final answer
    x = 62,358.22

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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.