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Finding the Fourth Proportional to 60,412, 90,530.40 and 34,060.72

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Solution

The fourth proportional to 60,412, 90,530.40 and 34,060.72 is: 51,041.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,412 : 90,530.40 = 34,060.72 : x
  2. Step 2: Convert to fraction form
    60,412/90,530.40 = 34,060.72/x
  3. Step 3: Cross multiply
    60,412x = 90,530.40 × 34,060.72
  4. Step 4: Simplify right side
    60,412x = 3,083,530,605.89
  5. Step 5: Solve for x
    x = 3,083,530,605.89/60,412
  6. Step 6: Final answer
    x = 51,041.69

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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.