Home / 53,713.71-80,570.60-20,426.08

Finding the Fourth Proportional to 53,713.71, 80,570.60 and 20,426.08

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Solution

The fourth proportional to 53,713.71, 80,570.60 and 20,426.08 is: 30,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,713.71 : 80,570.60 = 20,426.08 : x
  2. Step 2: Convert to fraction form
    53,713.71/80,570.60 = 20,426.08/x
  3. Step 3: Cross multiply
    53,713.71x = 80,570.60 × 20,426.08
  4. Step 4: Simplify right side
    53,713.71x = 1,645,741,521.25
  5. Step 5: Solve for x
    x = 1,645,741,521.25/53,713.71
  6. Step 6: Final answer
    x = 30,639.13

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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.