Home / 84,421.12-126,356.96-62,225.60

Finding the Fourth Proportional to 84,421.12, 126,356.96 and 62,225.60

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Solution

The fourth proportional to 84,421.12, 126,356.96 and 62,225.60 is: 93,135.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,421.12 : 126,356.96 = 62,225.60 : x
  2. Step 2: Convert to fraction form
    84,421.12/126,356.96 = 62,225.60/x
  3. Step 3: Cross multiply
    84,421.12x = 126,356.96 × 62,225.60
  4. Step 4: Simplify right side
    84,421.12x = 7,862,637,650.18
  5. Step 5: Solve for x
    x = 7,862,637,650.18/84,421.12
  6. Step 6: Final answer
    x = 93,135.91

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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.