Home / 72,164.16-99,587.66-40,335.12

Finding the Fourth Proportional to 72,164.16, 99,587.66 and 40,335.12

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Solution

The fourth proportional to 72,164.16, 99,587.66 and 40,335.12 is: 55,663.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,164.16 : 99,587.66 = 40,335.12 : x
  2. Step 2: Convert to fraction form
    72,164.16/99,587.66 = 40,335.12/x
  3. Step 3: Cross multiply
    72,164.16x = 99,587.66 × 40,335.12
  4. Step 4: Simplify right side
    72,164.16x = 4,016,880,216.62
  5. Step 5: Solve for x
    x = 4,016,880,216.62/72,164.16
  6. Step 6: Final answer
    x = 55,663.09

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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.