Home / 53,130.60-79,677.29-15,680.75

Finding the Fourth Proportional to 53,130.60, 79,677.29 and 15,680.75

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Solution

The fourth proportional to 53,130.60, 79,677.29 and 15,680.75 is: 23,515.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.60 : 79,677.29 = 15,680.75 : x
  2. Step 2: Convert to fraction form
    53,130.60/79,677.29 = 15,680.75/x
  3. Step 3: Cross multiply
    53,130.60x = 79,677.29 × 15,680.75
  4. Step 4: Simplify right side
    53,130.60x = 1,249,399,864.36
  5. Step 5: Solve for x
    x = 1,249,399,864.36/53,130.60
  6. Step 6: Final answer
    x = 23,515.64

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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.