Home / 79,968.13-110,266.04-65,386.85

Finding the Fourth Proportional to 79,968.13, 110,266.04 and 65,386.85

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Solution

The fourth proportional to 79,968.13, 110,266.04 and 65,386.85 is: 90,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,968.13 : 110,266.04 = 65,386.85 : x
  2. Step 2: Convert to fraction form
    79,968.13/110,266.04 = 65,386.85/x
  3. Step 3: Cross multiply
    79,968.13x = 110,266.04 × 65,386.85
  4. Step 4: Simplify right side
    79,968.13x = 7,209,948,629.71
  5. Step 5: Solve for x
    x = 7,209,948,629.71/79,968.13
  6. Step 6: Final answer
    x = 90,160.28

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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.