Home / 71,219.80-98,280.36-38,953.92

Finding the Fourth Proportional to 71,219.80, 98,280.36 and 38,953.92

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Solution

The fourth proportional to 71,219.80, 98,280.36 and 38,953.92 is: 53,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,219.80 : 98,280.36 = 38,953.92 : x
  2. Step 2: Convert to fraction form
    71,219.80/98,280.36 = 38,953.92/x
  3. Step 3: Cross multiply
    71,219.80x = 98,280.36 × 38,953.92
  4. Step 4: Simplify right side
    71,219.80x = 3,828,405,281.01
  5. Step 5: Solve for x
    x = 3,828,405,281.01/71,219.80
  6. Step 6: Final answer
    x = 53,754.79

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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.