Home / 53,335.04-79,979.76-18,278.24

Finding the Fourth Proportional to 53,335.04, 79,979.76 and 18,278.24

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Solution

The fourth proportional to 53,335.04, 79,979.76 and 18,278.24 is: 27,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,335.04 : 79,979.76 = 18,278.24 : x
  2. Step 2: Convert to fraction form
    53,335.04/79,979.76 = 18,278.24/x
  3. Step 3: Cross multiply
    53,335.04x = 79,979.76 × 18,278.24
  4. Step 4: Simplify right side
    53,335.04x = 1,461,889,248.42
  5. Step 5: Solve for x
    x = 1,461,889,248.42/53,335.04
  6. Step 6: Final answer
    x = 27,409.55

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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.