Home / 55,976.32-77,246.40-30,828.16

Finding the Fourth Proportional to 55,976.32, 77,246.40 and 30,828.16

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Solution

The fourth proportional to 55,976.32, 77,246.40 and 30,828.16 is: 42,542.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,976.32 : 77,246.40 = 30,828.16 : x
  2. Step 2: Convert to fraction form
    55,976.32/77,246.40 = 30,828.16/x
  3. Step 3: Cross multiply
    55,976.32x = 77,246.40 × 30,828.16
  4. Step 4: Simplify right side
    55,976.32x = 2,381,364,378.62
  5. Step 5: Solve for x
    x = 2,381,364,378.62/55,976.32
  6. Step 6: Final answer
    x = 42,542.35

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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.