Home / 56,930.69-85,448.12-28,870.11

Finding the Fourth Proportional to 56,930.69, 85,448.12 and 28,870.11

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Solution

The fourth proportional to 56,930.69, 85,448.12 and 28,870.11 is: 43,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,930.69 : 85,448.12 = 28,870.11 : x
  2. Step 2: Convert to fraction form
    56,930.69/85,448.12 = 28,870.11/x
  3. Step 3: Cross multiply
    56,930.69x = 85,448.12 × 28,870.11
  4. Step 4: Simplify right side
    56,930.69x = 2,466,897,082.60
  5. Step 5: Solve for x
    x = 2,466,897,082.60/56,930.69
  6. Step 6: Final answer
    x = 43,331.58

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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.