Home / 72,591.08-100,180.10-40,762.12

Finding the Fourth Proportional to 72,591.08, 100,180.10 and 40,762.12

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Solution

The fourth proportional to 72,591.08, 100,180.10 and 40,762.12 is: 56,254.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,591.08 : 100,180.10 = 40,762.12 : x
  2. Step 2: Convert to fraction form
    72,591.08/100,180.10 = 40,762.12/x
  3. Step 3: Cross multiply
    72,591.08x = 100,180.10 × 40,762.12
  4. Step 4: Simplify right side
    72,591.08x = 4,083,553,257.81
  5. Step 5: Solve for x
    x = 4,083,553,257.81/72,591.08
  6. Step 6: Final answer
    x = 56,254.20

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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.