Home / 43,120.89-64,681.61-15,040.83

Finding the Fourth Proportional to 43,120.89, 64,681.61 and 15,040.83

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Solution

The fourth proportional to 43,120.89, 64,681.61 and 15,040.83 is: 22,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,120.89 : 64,681.61 = 15,040.83 : x
  2. Step 2: Convert to fraction form
    43,120.89/64,681.61 = 15,040.83/x
  3. Step 3: Cross multiply
    43,120.89x = 64,681.61 × 15,040.83
  4. Step 4: Simplify right side
    43,120.89x = 972,865,024.93
  5. Step 5: Solve for x
    x = 972,865,024.93/43,120.89
  6. Step 6: Final answer
    x = 22,561.34

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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.