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Finding the Fourth Proportional to 60,067.76, 90,006.52 and 31,980.24

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Solution

The fourth proportional to 60,067.76, 90,006.52 and 31,980.24 is: 47,919.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,067.76 : 90,006.52 = 31,980.24 : x
  2. Step 2: Convert to fraction form
    60,067.76/90,006.52 = 31,980.24/x
  3. Step 3: Cross multiply
    60,067.76x = 90,006.52 × 31,980.24
  4. Step 4: Simplify right side
    60,067.76x = 2,878,430,111.16
  5. Step 5: Solve for x
    x = 2,878,430,111.16/60,067.76
  6. Step 6: Final answer
    x = 47,919.72

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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.