Home / 74,977.90-103,402.47-62,210.87

Finding the Fourth Proportional to 74,977.90, 103,402.47 and 62,210.87

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Solution

The fourth proportional to 74,977.90, 103,402.47 and 62,210.87 is: 85,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,977.90 : 103,402.47 = 62,210.87 : x
  2. Step 2: Convert to fraction form
    74,977.90/103,402.47 = 62,210.87/x
  3. Step 3: Cross multiply
    74,977.90x = 103,402.47 × 62,210.87
  4. Step 4: Simplify right side
    74,977.90x = 6,432,757,618.85
  5. Step 5: Solve for x
    x = 6,432,757,618.85/74,977.90
  6. Step 6: Final answer
    x = 85,795.38

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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.