Home / 71,247.40-98,320.98-39,415.62

Finding the Fourth Proportional to 71,247.40, 98,320.98 and 39,415.62

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Solution

The fourth proportional to 71,247.40, 98,320.98 and 39,415.62 is: 54,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247.40 : 98,320.98 = 39,415.62 : x
  2. Step 2: Convert to fraction form
    71,247.40/98,320.98 = 39,415.62/x
  3. Step 3: Cross multiply
    71,247.40x = 98,320.98 × 39,415.62
  4. Step 4: Simplify right side
    71,247.40x = 3,875,382,385.71
  5. Step 5: Solve for x
    x = 3,875,382,385.71/71,247.40
  6. Step 6: Final answer
    x = 54,393.32

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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.