Home / 74,319.12-102,556.80-42,491.52

Finding the Fourth Proportional to 74,319.12, 102,556.80 and 42,491.52

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Solution

The fourth proportional to 74,319.12, 102,556.80 and 42,491.52 is: 58,636.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,319.12 : 102,556.80 = 42,491.52 : x
  2. Step 2: Convert to fraction form
    74,319.12/102,556.80 = 42,491.52/x
  3. Step 3: Cross multiply
    74,319.12x = 102,556.80 × 42,491.52
  4. Step 4: Simplify right side
    74,319.12x = 4,357,794,318.34
  5. Step 5: Solve for x
    x = 4,357,794,318.34/74,319.12
  6. Step 6: Final answer
    x = 58,636.25

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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.