Home / 71,219.20-98,278.51-38,947.45

Finding the Fourth Proportional to 71,219.20, 98,278.51 and 38,947.45

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Solution

The fourth proportional to 71,219.20, 98,278.51 and 38,947.45 is: 53,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,219.20 : 98,278.51 = 38,947.45 : x
  2. Step 2: Convert to fraction form
    71,219.20/98,278.51 = 38,947.45/x
  3. Step 3: Cross multiply
    71,219.20x = 98,278.51 × 38,947.45
  4. Step 4: Simplify right side
    71,219.20x = 3,827,697,354.30
  5. Step 5: Solve for x
    x = 3,827,697,354.30/71,219.20
  6. Step 6: Final answer
    x = 53,745.30

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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.