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Finding the Fourth Proportional to 60,510.77, 83,418.30 and 40,360.30

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Solution

The fourth proportional to 60,510.77, 83,418.30 and 40,360.30 is: 55,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,510.77 : 83,418.30 = 40,360.30 : x
  2. Step 2: Convert to fraction form
    60,510.77/83,418.30 = 40,360.30/x
  3. Step 3: Cross multiply
    60,510.77x = 83,418.30 × 40,360.30
  4. Step 4: Simplify right side
    60,510.77x = 3,366,787,613.49
  5. Step 5: Solve for x
    x = 3,366,787,613.49/60,510.77
  6. Step 6: Final answer
    x = 55,639.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.