Home / 55,830.75-77,046.44-30,680.25

Finding the Fourth Proportional to 55,830.75, 77,046.44 and 30,680.25

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Solution

The fourth proportional to 55,830.75, 77,046.44 and 30,680.25 is: 42,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,830.75 : 77,046.44 = 30,680.25 : x
  2. Step 2: Convert to fraction form
    55,830.75/77,046.44 = 30,680.25/x
  3. Step 3: Cross multiply
    55,830.75x = 77,046.44 × 30,680.25
  4. Step 4: Simplify right side
    55,830.75x = 2,363,804,040.81
  5. Step 5: Solve for x
    x = 2,363,804,040.81/55,830.75
  6. Step 6: Final answer
    x = 42,338.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.