Home / 42,715.80-64,054.94-22,720.95

Finding the Fourth Proportional to 42,715.80, 64,054.94 and 22,720.95

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Solution

The fourth proportional to 42,715.80, 64,054.94 and 22,720.95 is: 34,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,715.80 : 64,054.94 = 22,720.95 : x
  2. Step 2: Convert to fraction form
    42,715.80/64,054.94 = 22,720.95/x
  3. Step 3: Cross multiply
    42,715.80x = 64,054.94 × 22,720.95
  4. Step 4: Simplify right side
    42,715.80x = 1,455,388,975.39
  5. Step 5: Solve for x
    x = 1,455,388,975.39/42,715.80
  6. Step 6: Final answer
    x = 34,071.44

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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.