Home / 55,870.06-77,102-30,377.88

Finding the Fourth Proportional to 55,870.06, 77,102 and 30,377.88

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Solution

The fourth proportional to 55,870.06, 77,102 and 30,377.88 is: 41,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,870.06 : 77,102 = 30,377.88 : x
  2. Step 2: Convert to fraction form
    55,870.06/77,102 = 30,377.88/x
  3. Step 3: Cross multiply
    55,870.06x = 77,102 × 30,377.88
  4. Step 4: Simplify right side
    55,870.06x = 2,342,195,303.76
  5. Step 5: Solve for x
    x = 2,342,195,303.76/55,870.06
  6. Step 6: Final answer
    x = 41,922.19

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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.