Home / 79,430.76-109,614.40-43,623.02

Finding the Fourth Proportional to 79,430.76, 109,614.40 and 43,623.02

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Solution

The fourth proportional to 79,430.76, 109,614.40 and 43,623.02 is: 60,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,430.76 : 109,614.40 = 43,623.02 : x
  2. Step 2: Convert to fraction form
    79,430.76/109,614.40 = 43,623.02/x
  3. Step 3: Cross multiply
    79,430.76x = 109,614.40 × 43,623.02
  4. Step 4: Simplify right side
    79,430.76x = 4,781,711,328.47
  5. Step 5: Solve for x
    x = 4,781,711,328.47/79,430.76
  6. Step 6: Final answer
    x = 60,199.74

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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.