Home / 52,038.10-77,940.42-40,315.78

Finding the Fourth Proportional to 52,038.10, 77,940.42 and 40,315.78

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Solution

The fourth proportional to 52,038.10, 77,940.42 and 40,315.78 is: 60,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,038.10 : 77,940.42 = 40,315.78 : x
  2. Step 2: Convert to fraction form
    52,038.10/77,940.42 = 40,315.78/x
  3. Step 3: Cross multiply
    52,038.10x = 77,940.42 × 40,315.78
  4. Step 4: Simplify right side
    52,038.10x = 3,142,228,825.83
  5. Step 5: Solve for x
    x = 3,142,228,825.83/52,038.10
  6. Step 6: Final answer
    x = 60,383.24

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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.