Home / 51,216.61-70,679.25-28,557.04

Finding the Fourth Proportional to 51,216.61, 70,679.25 and 28,557.04

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Solution

The fourth proportional to 51,216.61, 70,679.25 and 28,557.04 is: 39,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,216.61 : 70,679.25 = 28,557.04 : x
  2. Step 2: Convert to fraction form
    51,216.61/70,679.25 = 28,557.04/x
  3. Step 3: Cross multiply
    51,216.61x = 70,679.25 × 28,557.04
  4. Step 4: Simplify right side
    51,216.61x = 2,018,390,169.42
  5. Step 5: Solve for x
    x = 2,018,390,169.42/51,216.61
  6. Step 6: Final answer
    x = 39,408.90

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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.