Home / 43,290.07-64,937.55-12,127.75

Finding the Fourth Proportional to 43,290.07, 64,937.55 and 12,127.75

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Solution

The fourth proportional to 43,290.07, 64,937.55 and 12,127.75 is: 18,192.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,290.07 : 64,937.55 = 12,127.75 : x
  2. Step 2: Convert to fraction form
    43,290.07/64,937.55 = 12,127.75/x
  3. Step 3: Cross multiply
    43,290.07x = 64,937.55 × 12,127.75
  4. Step 4: Simplify right side
    43,290.07x = 787,546,372.01
  5. Step 5: Solve for x
    x = 787,546,372.01/43,290.07
  6. Step 6: Final answer
    x = 18,192.31

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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.