Home / 55,827.82-77,043-30,677.32

Finding the Fourth Proportional to 55,827.82, 77,043 and 30,677.32

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Solution

The fourth proportional to 55,827.82, 77,043 and 30,677.32 is: 42,335.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,827.82 : 77,043 = 30,677.32 : x
  2. Step 2: Convert to fraction form
    55,827.82/77,043 = 30,677.32/x
  3. Step 3: Cross multiply
    55,827.82x = 77,043 × 30,677.32
  4. Step 4: Simplify right side
    55,827.82x = 2,363,472,764.76
  5. Step 5: Solve for x
    x = 2,363,472,764.76/55,827.82
  6. Step 6: Final answer
    x = 42,335.04

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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.