Home / 71,856.35-99,159.09-40,024.57

Finding the Fourth Proportional to 71,856.35, 99,159.09 and 40,024.57

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Solution

The fourth proportional to 71,856.35, 99,159.09 and 40,024.57 is: 55,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,856.35 : 99,159.09 = 40,024.57 : x
  2. Step 2: Convert to fraction form
    71,856.35/99,159.09 = 40,024.57/x
  3. Step 3: Cross multiply
    71,856.35x = 99,159.09 × 40,024.57
  4. Step 4: Simplify right side
    71,856.35x = 3,968,799,443.05
  5. Step 5: Solve for x
    x = 3,968,799,443.05/71,856.35
  6. Step 6: Final answer
    x = 55,232.41

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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.