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Finding the Fourth Proportional to 71,153.48, 98,195.60 and 40,943.40

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Solution

The fourth proportional to 71,153.48, 98,195.60 and 40,943.40 is: 56,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,153.48 : 98,195.60 = 40,943.40 : x
  2. Step 2: Convert to fraction form
    71,153.48/98,195.60 = 40,943.40/x
  3. Step 3: Cross multiply
    71,153.48x = 98,195.60 × 40,943.40
  4. Step 4: Simplify right side
    71,153.48x = 4,020,461,729.04
  5. Step 5: Solve for x
    x = 4,020,461,729.04/71,153.48
  6. Step 6: Final answer
    x = 56,504.08

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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.