Home / 71,479.07-107,075.65-43,000.31

Finding the Fourth Proportional to 71,479.07, 107,075.65 and 43,000.31

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Solution

The fourth proportional to 71,479.07, 107,075.65 and 43,000.31 is: 64,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,479.07 : 107,075.65 = 43,000.31 : x
  2. Step 2: Convert to fraction form
    71,479.07/107,075.65 = 43,000.31/x
  3. Step 3: Cross multiply
    71,479.07x = 107,075.65 × 43,000.31
  4. Step 4: Simplify right side
    71,479.07x = 4,604,286,143.45
  5. Step 5: Solve for x
    x = 4,604,286,143.45/71,479.07
  6. Step 6: Final answer
    x = 64,414.47

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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.