Home / 55,830.06-77,043.96-30,679.56

Finding the Fourth Proportional to 55,830.06, 77,043.96 and 30,679.56

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Solution

The fourth proportional to 55,830.06, 77,043.96 and 30,679.56 is: 42,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,830.06 : 77,043.96 = 30,679.56 : x
  2. Step 2: Convert to fraction form
    55,830.06/77,043.96 = 30,679.56/x
  3. Step 3: Cross multiply
    55,830.06x = 77,043.96 × 30,679.56
  4. Step 4: Simplify right side
    55,830.06x = 2,363,674,793.46
  5. Step 5: Solve for x
    x = 2,363,674,793.46/55,830.06
  6. Step 6: Final answer
    x = 42,336.96

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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.