Home / 74,970.74-112,456.08-30,618.38

Finding the Fourth Proportional to 74,970.74, 112,456.08 and 30,618.38

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Solution

The fourth proportional to 74,970.74, 112,456.08 and 30,618.38 is: 45,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,970.74 : 112,456.08 = 30,618.38 : x
  2. Step 2: Convert to fraction form
    74,970.74/112,456.08 = 30,618.38/x
  3. Step 3: Cross multiply
    74,970.74x = 112,456.08 × 30,618.38
  4. Step 4: Simplify right side
    74,970.74x = 3,443,222,990.75
  5. Step 5: Solve for x
    x = 3,443,222,990.75/74,970.74
  6. Step 6: Final answer
    x = 45,927.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.