Home / 71,995.04-99,350.82-39,288.20

Finding the Fourth Proportional to 71,995.04, 99,350.82 and 39,288.20

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Solution

The fourth proportional to 71,995.04, 99,350.82 and 39,288.20 is: 54,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,995.04 : 99,350.82 = 39,288.20 : x
  2. Step 2: Convert to fraction form
    71,995.04/99,350.82 = 39,288.20/x
  3. Step 3: Cross multiply
    71,995.04x = 99,350.82 × 39,288.20
  4. Step 4: Simplify right side
    71,995.04x = 3,903,314,886.32
  5. Step 5: Solve for x
    x = 3,903,314,886.32/71,995.04
  6. Step 6: Final answer
    x = 54,216.44

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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.