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Finding the Fourth Proportional to 60,010.40, 90,007.68 and 15,640.40

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Solution

The fourth proportional to 60,010.40, 90,007.68 and 15,640.40 is: 23,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,010.40 : 90,007.68 = 15,640.40 : x
  2. Step 2: Convert to fraction form
    60,010.40/90,007.68 = 15,640.40/x
  3. Step 3: Cross multiply
    60,010.40x = 90,007.68 × 15,640.40
  4. Step 4: Simplify right side
    60,010.40x = 1,407,756,118.27
  5. Step 5: Solve for x
    x = 1,407,756,118.27/60,010.40
  6. Step 6: Final answer
    x = 23,458.54

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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.