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Finding the Fourth Proportional to 60,365.70, 90,475.65 and 30,768.30

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Solution

The fourth proportional to 60,365.70, 90,475.65 and 30,768.30 is: 46,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,365.70 : 90,475.65 = 30,768.30 : x
  2. Step 2: Convert to fraction form
    60,365.70/90,475.65 = 30,768.30/x
  3. Step 3: Cross multiply
    60,365.70x = 90,475.65 × 30,768.30
  4. Step 4: Simplify right side
    60,365.70x = 2,783,781,941.90
  5. Step 5: Solve for x
    x = 2,783,781,941.90/60,365.70
  6. Step 6: Final answer
    x = 46,115.29

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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.