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Finding the Fourth Proportional to 61,988.80, 93,080.40 and 35,744.80

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Solution

The fourth proportional to 61,988.80, 93,080.40 and 35,744.80 is: 53,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,988.80 : 93,080.40 = 35,744.80 : x
  2. Step 2: Convert to fraction form
    61,988.80/93,080.40 = 35,744.80/x
  3. Step 3: Cross multiply
    61,988.80x = 93,080.40 × 35,744.80
  4. Step 4: Simplify right side
    61,988.80x = 3,327,140,281.92
  5. Step 5: Solve for x
    x = 3,327,140,281.92/61,988.80
  6. Step 6: Final answer
    x = 53,673.25

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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.