Home / 67,132.78-92,656.65-51,188.74

Finding the Fourth Proportional to 67,132.78, 92,656.65 and 51,188.74

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Solution

The fourth proportional to 67,132.78, 92,656.65 and 51,188.74 is: 70,650.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,132.78 : 92,656.65 = 51,188.74 : x
  2. Step 2: Convert to fraction form
    67,132.78/92,656.65 = 51,188.74/x
  3. Step 3: Cross multiply
    67,132.78x = 92,656.65 × 51,188.74
  4. Step 4: Simplify right side
    67,132.78x = 4,742,977,166.12
  5. Step 5: Solve for x
    x = 4,742,977,166.12/67,132.78
  6. Step 6: Final answer
    x = 70,650.69

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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.