Home / 45,307.59-67,923.97-19,989.06

Finding the Fourth Proportional to 45,307.59, 67,923.97 and 19,989.06

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Solution

The fourth proportional to 45,307.59, 67,923.97 and 19,989.06 is: 29,967.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,307.59 : 67,923.97 = 19,989.06 : x
  2. Step 2: Convert to fraction form
    45,307.59/67,923.97 = 19,989.06/x
  3. Step 3: Cross multiply
    45,307.59x = 67,923.97 × 19,989.06
  4. Step 4: Simplify right side
    45,307.59x = 1,357,736,261.80
  5. Step 5: Solve for x
    x = 1,357,736,261.80/45,307.59
  6. Step 6: Final answer
    x = 29,967.08

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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.