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Finding the Fourth Proportional to 79,304.61, 109,430.27 and 45,315.30

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Solution

The fourth proportional to 79,304.61, 109,430.27 and 45,315.30 is: 62,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,304.61 : 109,430.27 = 45,315.30 : x
  2. Step 2: Convert to fraction form
    79,304.61/109,430.27 = 45,315.30/x
  3. Step 3: Cross multiply
    79,304.61x = 109,430.27 × 45,315.30
  4. Step 4: Simplify right side
    79,304.61x = 4,958,865,132.09
  5. Step 5: Solve for x
    x = 4,958,865,132.09/79,304.61
  6. Step 6: Final answer
    x = 62,529.35

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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.