Home / 99,782.79-149,586.17-40,667.91

Finding the Fourth Proportional to 99,782.79, 149,586.17 and 40,667.91

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Solution

The fourth proportional to 99,782.79, 149,586.17 and 40,667.91 is: 60,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,782.79 : 149,586.17 = 40,667.91 : x
  2. Step 2: Convert to fraction form
    99,782.79/149,586.17 = 40,667.91/x
  3. Step 3: Cross multiply
    99,782.79x = 149,586.17 × 40,667.91
  4. Step 4: Simplify right side
    99,782.79x = 6,083,356,695.47
  5. Step 5: Solve for x
    x = 6,083,356,695.47/99,782.79
  6. Step 6: Final answer
    x = 60,965.99

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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.