Home / 71,042.18-98,039.02-39,211.08

Finding the Fourth Proportional to 71,042.18, 98,039.02 and 39,211.08

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Solution

The fourth proportional to 71,042.18, 98,039.02 and 39,211.08 is: 54,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,042.18 : 98,039.02 = 39,211.08 : x
  2. Step 2: Convert to fraction form
    71,042.18/98,039.02 = 39,211.08/x
  3. Step 3: Cross multiply
    71,042.18x = 98,039.02 × 39,211.08
  4. Step 4: Simplify right side
    71,042.18x = 3,844,215,856.34
  5. Step 5: Solve for x
    x = 3,844,215,856.34/71,042.18
  6. Step 6: Final answer
    x = 54,111.74

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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.