Home / 43,246.80-64,865.40-12,085.20

Finding the Fourth Proportional to 43,246.80, 64,865.40 and 12,085.20

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Solution

The fourth proportional to 43,246.80, 64,865.40 and 12,085.20 is: 18,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,246.80 : 64,865.40 = 12,085.20 : x
  2. Step 2: Convert to fraction form
    43,246.80/64,865.40 = 12,085.20/x
  3. Step 3: Cross multiply
    43,246.80x = 64,865.40 × 12,085.20
  4. Step 4: Simplify right side
    43,246.80x = 783,911,332.08
  5. Step 5: Solve for x
    x = 783,911,332.08/43,246.80
  6. Step 6: Final answer
    x = 18,126.46

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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.