Home / 55,022.29-75,930.15-31,148.76

Finding the Fourth Proportional to 55,022.29, 75,930.15 and 31,148.76

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Solution

The fourth proportional to 55,022.29, 75,930.15 and 31,148.76 is: 42,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,022.29 : 75,930.15 = 31,148.76 : x
  2. Step 2: Convert to fraction form
    55,022.29/75,930.15 = 31,148.76/x
  3. Step 3: Cross multiply
    55,022.29x = 75,930.15 × 31,148.76
  4. Step 4: Simplify right side
    55,022.29x = 2,365,130,019.11
  5. Step 5: Solve for x
    x = 2,365,130,019.11/55,022.29
  6. Step 6: Final answer
    x = 42,984.94

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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.