Home / 53,415.38-80,010.05-34,639.64

Finding the Fourth Proportional to 53,415.38, 80,010.05 and 34,639.64

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Solution

The fourth proportional to 53,415.38, 80,010.05 and 34,639.64 is: 51,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,415.38 : 80,010.05 = 34,639.64 : x
  2. Step 2: Convert to fraction form
    53,415.38/80,010.05 = 34,639.64/x
  3. Step 3: Cross multiply
    53,415.38x = 80,010.05 × 34,639.64
  4. Step 4: Simplify right side
    53,415.38x = 2,771,518,755.13
  5. Step 5: Solve for x
    x = 2,771,518,755.13/53,415.38
  6. Step 6: Final answer
    x = 51,886.16

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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.