Home / 78,044.04-107,699.90-42,233.40

Finding the Fourth Proportional to 78,044.04, 107,699.90 and 42,233.40

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Solution

The fourth proportional to 78,044.04, 107,699.90 and 42,233.40 is: 58,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.04 : 107,699.90 = 42,233.40 : x
  2. Step 2: Convert to fraction form
    78,044.04/107,699.90 = 42,233.40/x
  3. Step 3: Cross multiply
    78,044.04x = 107,699.90 × 42,233.40
  4. Step 4: Simplify right side
    78,044.04x = 4,548,532,745.49
  5. Step 5: Solve for x
    x = 4,548,532,745.49/78,044.04
  6. Step 6: Final answer
    x = 58,281.62

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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.