Home / 79,386.16-109,552.48-43,576.80

Finding the Fourth Proportional to 79,386.16, 109,552.48 and 43,576.80

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Solution

The fourth proportional to 79,386.16, 109,552.48 and 43,576.80 is: 60,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,386.16 : 109,552.48 = 43,576.80 : x
  2. Step 2: Convert to fraction form
    79,386.16/109,552.48 = 43,576.80/x
  3. Step 3: Cross multiply
    79,386.16x = 109,552.48 × 43,576.80
  4. Step 4: Simplify right side
    79,386.16x = 4,773,946,510.46
  5. Step 5: Solve for x
    x = 4,773,946,510.46/79,386.16
  6. Step 6: Final answer
    x = 60,135.75

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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.