Home / 66,391.70-99,587.21-38,293.55

Finding the Fourth Proportional to 66,391.70, 99,587.21 and 38,293.55

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Solution

The fourth proportional to 66,391.70, 99,587.21 and 38,293.55 is: 57,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,391.70 : 99,587.21 = 38,293.55 : x
  2. Step 2: Convert to fraction form
    66,391.70/99,587.21 = 38,293.55/x
  3. Step 3: Cross multiply
    66,391.70x = 99,587.21 × 38,293.55
  4. Step 4: Simplify right side
    66,391.70x = 3,813,547,116.09
  5. Step 5: Solve for x
    x = 3,813,547,116.09/66,391.70
  6. Step 6: Final answer
    x = 57,440.12

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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.