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Finding the Fourth Proportional to 72,574.08, 100,152.15 and 40,743.04

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Solution

The fourth proportional to 72,574.08, 100,152.15 and 40,743.04 is: 56,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,574.08 : 100,152.15 = 40,743.04 : x
  2. Step 2: Convert to fraction form
    72,574.08/100,152.15 = 40,743.04/x
  3. Step 3: Cross multiply
    72,574.08x = 100,152.15 × 40,743.04
  4. Step 4: Simplify right side
    72,574.08x = 4,080,503,053.54
  5. Step 5: Solve for x
    x = 4,080,503,053.54/72,574.08
  6. Step 6: Final answer
    x = 56,225.35

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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.