Home / 72,026.95-99,402.69-39,767.79

Finding the Fourth Proportional to 72,026.95, 99,402.69 and 39,767.79

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Solution

The fourth proportional to 72,026.95, 99,402.69 and 39,767.79 is: 54,882.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,026.95 : 99,402.69 = 39,767.79 : x
  2. Step 2: Convert to fraction form
    72,026.95/99,402.69 = 39,767.79/x
  3. Step 3: Cross multiply
    72,026.95x = 99,402.69 × 39,767.79
  4. Step 4: Simplify right side
    72,026.95x = 3,953,025,301.36
  5. Step 5: Solve for x
    x = 3,953,025,301.36/72,026.95
  6. Step 6: Final answer
    x = 54,882.59

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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.