Home / 72,182.61-99,614.21-40,352.85

Finding the Fourth Proportional to 72,182.61, 99,614.21 and 40,352.85

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Solution

The fourth proportional to 72,182.61, 99,614.21 and 40,352.85 is: 55,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,182.61 : 99,614.21 = 40,352.85 : x
  2. Step 2: Convert to fraction form
    72,182.61/99,614.21 = 40,352.85/x
  3. Step 3: Cross multiply
    72,182.61x = 99,614.21 × 40,352.85
  4. Step 4: Simplify right side
    72,182.61x = 4,019,717,072.23
  5. Step 5: Solve for x
    x = 4,019,717,072.23/72,182.61
  6. Step 6: Final answer
    x = 55,688.16

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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.