Home / 71,259.12-98,340.48-39,427.47

Finding the Fourth Proportional to 71,259.12, 98,340.48 and 39,427.47

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Solution

The fourth proportional to 71,259.12, 98,340.48 and 39,427.47 is: 54,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,259.12 : 98,340.48 = 39,427.47 : x
  2. Step 2: Convert to fraction form
    71,259.12/98,340.48 = 39,427.47/x
  3. Step 3: Cross multiply
    71,259.12x = 98,340.48 × 39,427.47
  4. Step 4: Simplify right side
    71,259.12x = 3,877,316,324.99
  5. Step 5: Solve for x
    x = 3,877,316,324.99/71,259.12
  6. Step 6: Final answer
    x = 54,411.51

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1.5x scale

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.