Home / 53,669.42-80,501.54-20,386.88

Finding the Fourth Proportional to 53,669.42, 80,501.54 and 20,386.88

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Solution

The fourth proportional to 53,669.42, 80,501.54 and 20,386.88 is: 30,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,669.42 : 80,501.54 = 20,386.88 : x
  2. Step 2: Convert to fraction form
    53,669.42/80,501.54 = 20,386.88/x
  3. Step 3: Cross multiply
    53,669.42x = 80,501.54 × 20,386.88
  4. Step 4: Simplify right side
    53,669.42x = 1,641,175,235.80
  5. Step 5: Solve for x
    x = 1,641,175,235.80/53,669.42
  6. Step 6: Final answer
    x = 30,579.34

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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.