Home / 85,530.38-118,039.19-49,718.07

Finding the Fourth Proportional to 85,530.38, 118,039.19 and 49,718.07

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Solution

The fourth proportional to 85,530.38, 118,039.19 and 49,718.07 is: 68,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,530.38 : 118,039.19 = 49,718.07 : x
  2. Step 2: Convert to fraction form
    85,530.38/118,039.19 = 49,718.07/x
  3. Step 3: Cross multiply
    85,530.38x = 118,039.19 × 49,718.07
  4. Step 4: Simplify right side
    85,530.38x = 5,868,680,462.57
  5. Step 5: Solve for x
    x = 5,868,680,462.57/85,530.38
  6. Step 6: Final answer
    x = 68,615.16

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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.