Home / 42,076.54-63,118.28-30,285.20

Finding the Fourth Proportional to 42,076.54, 63,118.28 and 30,285.20

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Solution

The fourth proportional to 42,076.54, 63,118.28 and 30,285.20 is: 45,430.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,076.54 : 63,118.28 = 30,285.20 : x
  2. Step 2: Convert to fraction form
    42,076.54/63,118.28 = 30,285.20/x
  3. Step 3: Cross multiply
    42,076.54x = 63,118.28 × 30,285.20
  4. Step 4: Simplify right side
    42,076.54x = 1,911,549,493.58
  5. Step 5: Solve for x
    x = 1,911,549,493.58/42,076.54
  6. Step 6: Final answer
    x = 45,430.29

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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.