Home / 71,332.40-98,437.56-39,501.20

Finding the Fourth Proportional to 71,332.40, 98,437.56 and 39,501.20

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Solution

The fourth proportional to 71,332.40, 98,437.56 and 39,501.20 is: 54,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,332.40 : 98,437.56 = 39,501.20 : x
  2. Step 2: Convert to fraction form
    71,332.40/98,437.56 = 39,501.20/x
  3. Step 3: Cross multiply
    71,332.40x = 98,437.56 × 39,501.20
  4. Step 4: Simplify right side
    71,332.40x = 3,888,401,745.07
  5. Step 5: Solve for x
    x = 3,888,401,745.07/71,332.40
  6. Step 6: Final answer
    x = 54,511.02

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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.