Home / 71,159.48-98,126.34-61,121.08

Finding the Fourth Proportional to 71,159.48, 98,126.34 and 61,121.08

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Solution

The fourth proportional to 71,159.48, 98,126.34 and 61,121.08 is: 84,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,159.48 : 98,126.34 = 61,121.08 : x
  2. Step 2: Convert to fraction form
    71,159.48/98,126.34 = 61,121.08/x
  3. Step 3: Cross multiply
    71,159.48x = 98,126.34 × 61,121.08
  4. Step 4: Simplify right side
    71,159.48x = 5,997,587,877.25
  5. Step 5: Solve for x
    x = 5,997,587,877.25/71,159.48
  6. Step 6: Final answer
    x = 84,283.75

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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.