Home / 55,187.20-76,156.14-30,036.70

Finding the Fourth Proportional to 55,187.20, 76,156.14 and 30,036.70

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Solution

The fourth proportional to 55,187.20, 76,156.14 and 30,036.70 is: 41,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,187.20 : 76,156.14 = 30,036.70 : x
  2. Step 2: Convert to fraction form
    55,187.20/76,156.14 = 30,036.70/x
  3. Step 3: Cross multiply
    55,187.20x = 76,156.14 × 30,036.70
  4. Step 4: Simplify right side
    55,187.20x = 2,287,479,130.34
  5. Step 5: Solve for x
    x = 2,287,479,130.34/55,187.20
  6. Step 6: Final answer
    x = 41,449.45

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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.