Home / 72,501.24-108,750.48-19,908.76

Finding the Fourth Proportional to 72,501.24, 108,750.48 and 19,908.76

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Solution

The fourth proportional to 72,501.24, 108,750.48 and 19,908.76 is: 29,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,501.24 : 108,750.48 = 19,908.76 : x
  2. Step 2: Convert to fraction form
    72,501.24/108,750.48 = 19,908.76/x
  3. Step 3: Cross multiply
    72,501.24x = 108,750.48 × 19,908.76
  4. Step 4: Simplify right side
    72,501.24x = 2,165,087,206.20
  5. Step 5: Solve for x
    x = 2,165,087,206.20/72,501.24
  6. Step 6: Final answer
    x = 29,862.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.