Home / 53,145.47-79,729.45-17,604.78

Finding the Fourth Proportional to 53,145.47, 79,729.45 and 17,604.78

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Solution

The fourth proportional to 53,145.47, 79,729.45 and 17,604.78 is: 26,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,145.47 : 79,729.45 = 17,604.78 : x
  2. Step 2: Convert to fraction form
    53,145.47/79,729.45 = 17,604.78/x
  3. Step 3: Cross multiply
    53,145.47x = 79,729.45 × 17,604.78
  4. Step 4: Simplify right side
    53,145.47x = 1,403,619,426.77
  5. Step 5: Solve for x
    x = 1,403,619,426.77/53,145.47
  6. Step 6: Final answer
    x = 26,410.89

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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.