Home / 48,093.18-72,139.80-20,012.70

Finding the Fourth Proportional to 48,093.18, 72,139.80 and 20,012.70

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Solution

The fourth proportional to 48,093.18, 72,139.80 and 20,012.70 is: 30,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,093.18 : 72,139.80 = 20,012.70 : x
  2. Step 2: Convert to fraction form
    48,093.18/72,139.80 = 20,012.70/x
  3. Step 3: Cross multiply
    48,093.18x = 72,139.80 × 20,012.70
  4. Step 4: Simplify right side
    48,093.18x = 1,443,712,175.46
  5. Step 5: Solve for x
    x = 1,443,712,175.46/48,093.18
  6. Step 6: Final answer
    x = 30,019.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.