Home / 40,545.04-55,990.80-38,336.20

Finding the Fourth Proportional to 40,545.04, 55,990.80 and 38,336.20

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Solution

The fourth proportional to 40,545.04, 55,990.80 and 38,336.20 is: 52,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,545.04 : 55,990.80 = 38,336.20 : x
  2. Step 2: Convert to fraction form
    40,545.04/55,990.80 = 38,336.20/x
  3. Step 3: Cross multiply
    40,545.04x = 55,990.80 × 38,336.20
  4. Step 4: Simplify right side
    40,545.04x = 2,146,474,506.96
  5. Step 5: Solve for x
    x = 2,146,474,506.96/40,545.04
  6. Step 6: Final answer
    x = 52,940.50

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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.