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Finding the Fourth Proportional to 92,779.50, 138,984.93 and 45,889.26

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Solution

The fourth proportional to 92,779.50, 138,984.93 and 45,889.26 is: 68,742.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,779.50 : 138,984.93 = 45,889.26 : x
  2. Step 2: Convert to fraction form
    92,779.50/138,984.93 = 45,889.26/x
  3. Step 3: Cross multiply
    92,779.50x = 138,984.93 × 45,889.26
  4. Step 4: Simplify right side
    92,779.50x = 6,377,915,588.85
  5. Step 5: Solve for x
    x = 6,377,915,588.85/92,779.50
  6. Step 6: Final answer
    x = 68,742.72

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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.