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Finding the Fourth Proportional to 45,360.60, 68,024.70 and 15,779.40

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Solution

The fourth proportional to 45,360.60, 68,024.70 and 15,779.40 is: 23,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,360.60 : 68,024.70 = 15,779.40 : x
  2. Step 2: Convert to fraction form
    45,360.60/68,024.70 = 15,779.40/x
  3. Step 3: Cross multiply
    45,360.60x = 68,024.70 × 15,779.40
  4. Step 4: Simplify right side
    45,360.60x = 1,073,388,951.18
  5. Step 5: Solve for x
    x = 1,073,388,951.18/45,360.60
  6. Step 6: Final answer
    x = 23,663.46

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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.