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Finding the Fourth Proportional to 71,290.28, 98,392.79 and 41,070.19

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Solution

The fourth proportional to 71,290.28, 98,392.79 and 41,070.19 is: 56,683.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,290.28 : 98,392.79 = 41,070.19 : x
  2. Step 2: Convert to fraction form
    71,290.28/98,392.79 = 41,070.19/x
  3. Step 3: Cross multiply
    71,290.28x = 98,392.79 × 41,070.19
  4. Step 4: Simplify right side
    71,290.28x = 4,041,010,579.93
  5. Step 5: Solve for x
    x = 4,041,010,579.93/71,290.28
  6. Step 6: Final answer
    x = 56,683.89

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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.