Home / 43,290.06-64,937.56-12,127.74

Finding the Fourth Proportional to 43,290.06, 64,937.56 and 12,127.74

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Solution

The fourth proportional to 43,290.06, 64,937.56 and 12,127.74 is: 18,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,290.06 : 64,937.56 = 12,127.74 : x
  2. Step 2: Convert to fraction form
    43,290.06/64,937.56 = 12,127.74/x
  3. Step 3: Cross multiply
    43,290.06x = 64,937.56 × 12,127.74
  4. Step 4: Simplify right side
    43,290.06x = 787,545,843.91
  5. Step 5: Solve for x
    x = 787,545,843.91/43,290.06
  6. Step 6: Final answer
    x = 18,192.30

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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.