Home / 45,129.78-62,289.56-30,023.08

Finding the Fourth Proportional to 45,129.78, 62,289.56 and 30,023.08

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Solution

The fourth proportional to 45,129.78, 62,289.56 and 30,023.08 is: 41,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129.78 : 62,289.56 = 30,023.08 : x
  2. Step 2: Convert to fraction form
    45,129.78/62,289.56 = 30,023.08/x
  3. Step 3: Cross multiply
    45,129.78x = 62,289.56 × 30,023.08
  4. Step 4: Simplify right side
    45,129.78x = 1,870,124,368.69
  5. Step 5: Solve for x
    x = 1,870,124,368.69/45,129.78
  6. Step 6: Final answer
    x = 41,438.81

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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.