Home / 78,052.06-107,712.03-42,242.46

Finding the Fourth Proportional to 78,052.06, 107,712.03 and 42,242.46

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Solution

The fourth proportional to 78,052.06, 107,712.03 and 42,242.46 is: 58,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052.06 : 107,712.03 = 42,242.46 : x
  2. Step 2: Convert to fraction form
    78,052.06/107,712.03 = 42,242.46/x
  3. Step 3: Cross multiply
    78,052.06x = 107,712.03 × 42,242.46
  4. Step 4: Simplify right side
    78,052.06x = 4,550,021,118.79
  5. Step 5: Solve for x
    x = 4,550,021,118.79/78,052.06
  6. Step 6: Final answer
    x = 58,294.70

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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.