Home / 72,160.15-99,582.14-40,331.11

Finding the Fourth Proportional to 72,160.15, 99,582.14 and 40,331.11

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Solution

The fourth proportional to 72,160.15, 99,582.14 and 40,331.11 is: 55,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,160.15 : 99,582.14 = 40,331.11 : x
  2. Step 2: Convert to fraction form
    72,160.15/99,582.14 = 40,331.11/x
  3. Step 3: Cross multiply
    72,160.15x = 99,582.14 × 40,331.11
  4. Step 4: Simplify right side
    72,160.15x = 4,016,258,242.38
  5. Step 5: Solve for x
    x = 4,016,258,242.38/72,160.15
  6. Step 6: Final answer
    x = 55,657.57

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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.