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Finding the Fourth Proportional to 60,015.54, 90,020.91 and 15,642.66

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Solution

The fourth proportional to 60,015.54, 90,020.91 and 15,642.66 is: 23,463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,015.54 : 90,020.91 = 15,642.66 : x
  2. Step 2: Convert to fraction form
    60,015.54/90,020.91 = 15,642.66/x
  3. Step 3: Cross multiply
    60,015.54x = 90,020.91 × 15,642.66
  4. Step 4: Simplify right side
    60,015.54x = 1,408,166,488.02
  5. Step 5: Solve for x
    x = 1,408,166,488.02/60,015.54
  6. Step 6: Final answer
    x = 23,463.36

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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.