Home / 54,778.32-75,587.58-30,903.60

Finding the Fourth Proportional to 54,778.32, 75,587.58 and 30,903.60

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Solution

The fourth proportional to 54,778.32, 75,587.58 and 30,903.60 is: 42,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,778.32 : 75,587.58 = 30,903.60 : x
  2. Step 2: Convert to fraction form
    54,778.32/75,587.58 = 30,903.60/x
  3. Step 3: Cross multiply
    54,778.32x = 75,587.58 × 30,903.60
  4. Step 4: Simplify right side
    54,778.32x = 2,335,928,337.29
  5. Step 5: Solve for x
    x = 2,335,928,337.29/54,778.32
  6. Step 6: Final answer
    x = 42,643.30

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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.