Home / 86,274.54-129,442.95-30,122.92

Finding the Fourth Proportional to 86,274.54, 129,442.95 and 30,122.92

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Solution

The fourth proportional to 86,274.54, 129,442.95 and 30,122.92 is: 45,195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,274.54 : 129,442.95 = 30,122.92 : x
  2. Step 2: Convert to fraction form
    86,274.54/129,442.95 = 30,122.92/x
  3. Step 3: Cross multiply
    86,274.54x = 129,442.95 × 30,122.92
  4. Step 4: Simplify right side
    86,274.54x = 3,899,199,421.41
  5. Step 5: Solve for x
    x = 3,899,199,421.41/86,274.54
  6. Step 6: Final answer
    x = 45,195.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.