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Finding the Fourth Proportional to 60,500.31, 90,768.93 and 30,938.91

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Solution

The fourth proportional to 60,500.31, 90,768.93 and 30,938.91 is: 46,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,500.31 : 90,768.93 = 30,938.91 : x
  2. Step 2: Convert to fraction form
    60,500.31/90,768.93 = 30,938.91/x
  3. Step 3: Cross multiply
    60,500.31x = 90,768.93 × 30,938.91
  4. Step 4: Simplify right side
    60,500.31x = 2,808,291,601.37
  5. Step 5: Solve for x
    x = 2,808,291,601.37/60,500.31
  6. Step 6: Final answer
    x = 46,417.81

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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.