Home / 53,386.80-79,984.20-25,623.60

Finding the Fourth Proportional to 53,386.80, 79,984.20 and 25,623.60

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Solution

The fourth proportional to 53,386.80, 79,984.20 and 25,623.60 is: 38,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,386.80 : 79,984.20 = 25,623.60 : x
  2. Step 2: Convert to fraction form
    53,386.80/79,984.20 = 25,623.60/x
  3. Step 3: Cross multiply
    53,386.80x = 79,984.20 × 25,623.60
  4. Step 4: Simplify right side
    53,386.80x = 2,049,483,147.12
  5. Step 5: Solve for x
    x = 2,049,483,147.12/53,386.80
  6. Step 6: Final answer
    x = 38,389.32

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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.