Home / 99,430.78-149,124.57-32,855.14

Finding the Fourth Proportional to 99,430.78, 149,124.57 and 32,855.14

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Solution

The fourth proportional to 99,430.78, 149,124.57 and 32,855.14 is: 49,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,430.78 : 149,124.57 = 32,855.14 : x
  2. Step 2: Convert to fraction form
    99,430.78/149,124.57 = 32,855.14/x
  3. Step 3: Cross multiply
    99,430.78x = 149,124.57 × 32,855.14
  4. Step 4: Simplify right side
    99,430.78x = 4,899,508,624.79
  5. Step 5: Solve for x
    x = 4,899,508,624.79/99,430.78
  6. Step 6: Final answer
    x = 49,275.57

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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.