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Finding the Fourth Proportional to 60,441.96, 90,679.95 and 21,003.06

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Solution

The fourth proportional to 60,441.96, 90,679.95 and 21,003.06 is: 31,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,441.96 : 90,679.95 = 21,003.06 : x
  2. Step 2: Convert to fraction form
    60,441.96/90,679.95 = 21,003.06/x
  3. Step 3: Cross multiply
    60,441.96x = 90,679.95 × 21,003.06
  4. Step 4: Simplify right side
    60,441.96x = 1,904,556,430.65
  5. Step 5: Solve for x
    x = 1,904,556,430.65/60,441.96
  6. Step 6: Final answer
    x = 31,510.50

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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.