Home / 84,509.75-126,582.36-79,541.33

Finding the Fourth Proportional to 84,509.75, 126,582.36 and 79,541.33

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Solution

The fourth proportional to 84,509.75, 126,582.36 and 79,541.33 is: 119,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,509.75 : 126,582.36 = 79,541.33 : x
  2. Step 2: Convert to fraction form
    84,509.75/126,582.36 = 79,541.33/x
  3. Step 3: Cross multiply
    84,509.75x = 126,582.36 × 79,541.33
  4. Step 4: Simplify right side
    84,509.75x = 10,068,528,785.17
  5. Step 5: Solve for x
    x = 10,068,528,785.17/84,509.75
  6. Step 6: Final answer
    x = 119,140.44

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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.