Home / 42,135.63-63,203.42-12,552.71

Finding the Fourth Proportional to 42,135.63, 63,203.42 and 12,552.71

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Solution

The fourth proportional to 42,135.63, 63,203.42 and 12,552.71 is: 18,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135.63 : 63,203.42 = 12,552.71 : x
  2. Step 2: Convert to fraction form
    42,135.63/63,203.42 = 12,552.71/x
  3. Step 3: Cross multiply
    42,135.63x = 63,203.42 × 12,552.71
  4. Step 4: Simplify right side
    42,135.63x = 793,373,823.49
  5. Step 5: Solve for x
    x = 793,373,823.49/42,135.63
  6. Step 6: Final answer
    x = 18,829.05

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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.