Home / 42,078.20-63,064.67-21,024.13

Finding the Fourth Proportional to 42,078.20, 63,064.67 and 21,024.13

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Solution

The fourth proportional to 42,078.20, 63,064.67 and 21,024.13 is: 31,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,078.20 : 63,064.67 = 21,024.13 : x
  2. Step 2: Convert to fraction form
    42,078.20/63,064.67 = 21,024.13/x
  3. Step 3: Cross multiply
    42,078.20x = 63,064.67 × 21,024.13
  4. Step 4: Simplify right side
    42,078.20x = 1,325,879,820.49
  5. Step 5: Solve for x
    x = 1,325,879,820.49/42,078.20
  6. Step 6: Final answer
    x = 31,509.90

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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.