Home / 71,320.42-98,427.72-39,492.28

Finding the Fourth Proportional to 71,320.42, 98,427.72 and 39,492.28

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Solution

The fourth proportional to 71,320.42, 98,427.72 and 39,492.28 is: 54,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,320.42 : 98,427.72 = 39,492.28 : x
  2. Step 2: Convert to fraction form
    71,320.42/98,427.72 = 39,492.28/x
  3. Step 3: Cross multiply
    71,320.42x = 98,427.72 × 39,492.28
  4. Step 4: Simplify right side
    71,320.42x = 3,887,135,078.00
  5. Step 5: Solve for x
    x = 3,887,135,078.00/71,320.42
  6. Step 6: Final answer
    x = 54,502.41

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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.