Home / 72,032.08-99,409.26-40,207.18

Finding the Fourth Proportional to 72,032.08, 99,409.26 and 40,207.18

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Solution

The fourth proportional to 72,032.08, 99,409.26 and 40,207.18 is: 55,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.08 : 99,409.26 = 40,207.18 : x
  2. Step 2: Convert to fraction form
    72,032.08/99,409.26 = 40,207.18/x
  3. Step 3: Cross multiply
    72,032.08x = 99,409.26 × 40,207.18
  4. Step 4: Simplify right side
    72,032.08x = 3,996,966,010.49
  5. Step 5: Solve for x
    x = 3,996,966,010.49/72,032.08
  6. Step 6: Final answer
    x = 55,488.69

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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.