Home / 56,127.88-77,456.58-30,977.36

Finding the Fourth Proportional to 56,127.88, 77,456.58 and 30,977.36

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Solution

The fourth proportional to 56,127.88, 77,456.58 and 30,977.36 is: 42,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,127.88 : 77,456.58 = 30,977.36 : x
  2. Step 2: Convert to fraction form
    56,127.88/77,456.58 = 30,977.36/x
  3. Step 3: Cross multiply
    56,127.88x = 77,456.58 × 30,977.36
  4. Step 4: Simplify right side
    56,127.88x = 2,399,400,363.03
  5. Step 5: Solve for x
    x = 2,399,400,363.03/56,127.88
  6. Step 6: Final answer
    x = 42,748.82

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1.5x scale

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.