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Finding the Fourth Proportional to 79,008.36, 109,058.98 and 45,487.72

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Solution

The fourth proportional to 79,008.36, 109,058.98 and 45,487.72 is: 62,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,008.36 : 109,058.98 = 45,487.72 : x
  2. Step 2: Convert to fraction form
    79,008.36/109,058.98 = 45,487.72/x
  3. Step 3: Cross multiply
    79,008.36x = 109,058.98 × 45,487.72
  4. Step 4: Simplify right side
    79,008.36x = 4,960,844,345.73
  5. Step 5: Solve for x
    x = 4,960,844,345.73/79,008.36
  6. Step 6: Final answer
    x = 62,788.85

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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.