Home / 42,228.32-63,072.76-38,219.60

Finding the Fourth Proportional to 42,228.32, 63,072.76 and 38,219.60

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Solution

The fourth proportional to 42,228.32, 63,072.76 and 38,219.60 is: 57,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,228.32 : 63,072.76 = 38,219.60 : x
  2. Step 2: Convert to fraction form
    42,228.32/63,072.76 = 38,219.60/x
  3. Step 3: Cross multiply
    42,228.32x = 63,072.76 × 38,219.60
  4. Step 4: Simplify right side
    42,228.32x = 2,410,615,658.10
  5. Step 5: Solve for x
    x = 2,410,615,658.10/42,228.32
  6. Step 6: Final answer
    x = 57,085.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.