Home / 42,017.20-63,025.80-39,830.20

Finding the Fourth Proportional to 42,017.20, 63,025.80 and 39,830.20

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Solution

The fourth proportional to 42,017.20, 63,025.80 and 39,830.20 is: 59,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,017.20 : 63,025.80 = 39,830.20 : x
  2. Step 2: Convert to fraction form
    42,017.20/63,025.80 = 39,830.20/x
  3. Step 3: Cross multiply
    42,017.20x = 63,025.80 × 39,830.20
  4. Step 4: Simplify right side
    42,017.20x = 2,510,330,219.16
  5. Step 5: Solve for x
    x = 2,510,330,219.16/42,017.20
  6. Step 6: Final answer
    x = 59,745.30

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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.