Home / 79,088.95-109,150.20-47,257.18

Finding the Fourth Proportional to 79,088.95, 109,150.20 and 47,257.18

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Solution

The fourth proportional to 79,088.95, 109,150.20 and 47,257.18 is: 65,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,088.95 : 109,150.20 = 47,257.18 : x
  2. Step 2: Convert to fraction form
    79,088.95/109,150.20 = 47,257.18/x
  3. Step 3: Cross multiply
    79,088.95x = 109,150.20 × 47,257.18
  4. Step 4: Simplify right side
    79,088.95x = 5,158,130,648.44
  5. Step 5: Solve for x
    x = 5,158,130,648.44/79,088.95
  6. Step 6: Final answer
    x = 65,219.36

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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.