Home / 53,893.20-74,370.80-30,018.72

Finding the Fourth Proportional to 53,893.20, 74,370.80 and 30,018.72

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Solution

The fourth proportional to 53,893.20, 74,370.80 and 30,018.72 is: 41,424.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,893.20 : 74,370.80 = 30,018.72 : x
  2. Step 2: Convert to fraction form
    53,893.20/74,370.80 = 30,018.72/x
  3. Step 3: Cross multiply
    53,893.20x = 74,370.80 × 30,018.72
  4. Step 4: Simplify right side
    53,893.20x = 2,232,516,221.38
  5. Step 5: Solve for x
    x = 2,232,516,221.38/53,893.20
  6. Step 6: Final answer
    x = 41,424.82

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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.