Home / 71,700.04-107,567.07-21,782.98

Finding the Fourth Proportional to 71,700.04, 107,567.07 and 21,782.98

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Solution

The fourth proportional to 71,700.04, 107,567.07 and 21,782.98 is: 32,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,700.04 : 107,567.07 = 21,782.98 : x
  2. Step 2: Convert to fraction form
    71,700.04/107,567.07 = 21,782.98/x
  3. Step 3: Cross multiply
    71,700.04x = 107,567.07 × 21,782.98
  4. Step 4: Simplify right side
    71,700.04x = 2,343,131,334.47
  5. Step 5: Solve for x
    x = 2,343,131,334.47/71,700.04
  6. Step 6: Final answer
    x = 32,679.64

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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.