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Finding the Fourth Proportional to 60,010.81, 90,072.72 and 30,449.86

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Solution

The fourth proportional to 60,010.81, 90,072.72 and 30,449.86 is: 45,703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,010.81 : 90,072.72 = 30,449.86 : x
  2. Step 2: Convert to fraction form
    60,010.81/90,072.72 = 30,449.86/x
  3. Step 3: Cross multiply
    60,010.81x = 90,072.72 × 30,449.86
  4. Step 4: Simplify right side
    60,010.81x = 2,742,701,561.57
  5. Step 5: Solve for x
    x = 2,742,701,561.57/60,010.81
  6. Step 6: Final answer
    x = 45,703.46

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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.