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Finding the Fourth Proportional to 60,530.72, 90,881.16 and 30,969.76

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Solution

The fourth proportional to 60,530.72, 90,881.16 and 30,969.76 is: 46,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,530.72 : 90,881.16 = 30,969.76 : x
  2. Step 2: Convert to fraction form
    60,530.72/90,881.16 = 30,969.76/x
  3. Step 3: Cross multiply
    60,530.72x = 90,881.16 × 30,969.76
  4. Step 4: Simplify right side
    60,530.72x = 2,814,567,713.72
  5. Step 5: Solve for x
    x = 2,814,567,713.72/60,530.72
  6. Step 6: Final answer
    x = 46,498.17

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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.