Home / 71,048.40-97,986.60-42,748.80

Finding the Fourth Proportional to 71,048.40, 97,986.60 and 42,748.80

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Solution

The fourth proportional to 71,048.40, 97,986.60 and 42,748.80 is: 58,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,048.40 : 97,986.60 = 42,748.80 : x
  2. Step 2: Convert to fraction form
    71,048.40/97,986.60 = 42,748.80/x
  3. Step 3: Cross multiply
    71,048.40x = 97,986.60 × 42,748.80
  4. Step 4: Simplify right side
    71,048.40x = 4,188,809,566.08
  5. Step 5: Solve for x
    x = 4,188,809,566.08/71,048.40
  6. Step 6: Final answer
    x = 58,957.13

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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.