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Finding the Fourth Proportional to 60,510.78, 90,707.85 and 40,745.22

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Solution

The fourth proportional to 60,510.78, 90,707.85 and 40,745.22 is: 61,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,510.78 : 90,707.85 = 40,745.22 : x
  2. Step 2: Convert to fraction form
    60,510.78/90,707.85 = 40,745.22/x
  3. Step 3: Cross multiply
    60,510.78x = 90,707.85 × 40,745.22
  4. Step 4: Simplify right side
    60,510.78x = 3,695,911,303.98
  5. Step 5: Solve for x
    x = 3,695,911,303.98/60,510.78
  6. Step 6: Final answer
    x = 61,078.56

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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.