Home / 55,853.68-77,078.28-30,703.36

Finding the Fourth Proportional to 55,853.68, 77,078.28 and 30,703.36

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Solution

The fourth proportional to 55,853.68, 77,078.28 and 30,703.36 is: 42,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,853.68 : 77,078.28 = 30,703.36 : x
  2. Step 2: Convert to fraction form
    55,853.68/77,078.28 = 30,703.36/x
  3. Step 3: Cross multiply
    55,853.68x = 77,078.28 × 30,703.36
  4. Step 4: Simplify right side
    55,853.68x = 2,366,562,179.02
  5. Step 5: Solve for x
    x = 2,366,562,179.02/55,853.68
  6. Step 6: Final answer
    x = 42,370.75

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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.