Home / 72,176.08-99,602.70-40,344.96

Finding the Fourth Proportional to 72,176.08, 99,602.70 and 40,344.96

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Solution

The fourth proportional to 72,176.08, 99,602.70 and 40,344.96 is: 55,675.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,176.08 : 99,602.70 = 40,344.96 : x
  2. Step 2: Convert to fraction form
    72,176.08/99,602.70 = 40,344.96/x
  3. Step 3: Cross multiply
    72,176.08x = 99,602.70 × 40,344.96
  4. Step 4: Simplify right side
    72,176.08x = 4,018,466,947.39
  5. Step 5: Solve for x
    x = 4,018,466,947.39/72,176.08
  6. Step 6: Final answer
    x = 55,675.88

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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.