Home / 54,885.20-75,740.60-31,011.37

Finding the Fourth Proportional to 54,885.20, 75,740.60 and 31,011.37

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Solution

The fourth proportional to 54,885.20, 75,740.60 and 31,011.37 is: 42,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,885.20 : 75,740.60 = 31,011.37 : x
  2. Step 2: Convert to fraction form
    54,885.20/75,740.60 = 31,011.37/x
  3. Step 3: Cross multiply
    54,885.20x = 75,740.60 × 31,011.37
  4. Step 4: Simplify right side
    54,885.20x = 2,348,819,426.21
  5. Step 5: Solve for x
    x = 2,348,819,426.21/54,885.20
  6. Step 6: Final answer
    x = 42,795.13

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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.