Home / 56,127.68-77,456.04-30,977

Finding the Fourth Proportional to 56,127.68, 77,456.04 and 30,977

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Solution

The fourth proportional to 56,127.68, 77,456.04 and 30,977 is: 42,748.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,127.68 : 77,456.04 = 30,977 : x
  2. Step 2: Convert to fraction form
    56,127.68/77,456.04 = 30,977/x
  3. Step 3: Cross multiply
    56,127.68x = 77,456.04 × 30,977
  4. Step 4: Simplify right side
    56,127.68x = 2,399,355,751.08
  5. Step 5: Solve for x
    x = 2,399,355,751.08/56,127.68
  6. Step 6: Final answer
    x = 42,748.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.