Home / 71,316.90-98,312.49-54,291.47

Finding the Fourth Proportional to 71,316.90, 98,312.49 and 54,291.47

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Solution

The fourth proportional to 71,316.90, 98,312.49 and 54,291.47 is: 74,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.90 : 98,312.49 = 54,291.47 : x
  2. Step 2: Convert to fraction form
    71,316.90/98,312.49 = 54,291.47/x
  3. Step 3: Cross multiply
    71,316.90x = 98,312.49 × 54,291.47
  4. Step 4: Simplify right side
    71,316.90x = 5,337,529,109.90
  5. Step 5: Solve for x
    x = 5,337,529,109.90/71,316.90
  6. Step 6: Final answer
    x = 74,842.42

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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.