Home / 85,718.49-128,586.18-29,551.20

Finding the Fourth Proportional to 85,718.49, 128,586.18 and 29,551.20

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Solution

The fourth proportional to 85,718.49, 128,586.18 and 29,551.20 is: 44,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,718.49 : 128,586.18 = 29,551.20 : x
  2. Step 2: Convert to fraction form
    85,718.49/128,586.18 = 29,551.20/x
  3. Step 3: Cross multiply
    85,718.49x = 128,586.18 × 29,551.20
  4. Step 4: Simplify right side
    85,718.49x = 3,799,875,922.42
  5. Step 5: Solve for x
    x = 3,799,875,922.42/85,718.49
  6. Step 6: Final answer
    x = 44,329.71

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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.