Home / 90,045.51-124,259.46-49,758.44

Finding the Fourth Proportional to 90,045.51, 124,259.46 and 49,758.44

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Solution

The fourth proportional to 90,045.51, 124,259.46 and 49,758.44 is: 68,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,045.51 : 124,259.46 = 49,758.44 : x
  2. Step 2: Convert to fraction form
    90,045.51/124,259.46 = 49,758.44/x
  3. Step 3: Cross multiply
    90,045.51x = 124,259.46 × 49,758.44
  4. Step 4: Simplify right side
    90,045.51x = 6,182,956,263.55
  5. Step 5: Solve for x
    x = 6,182,956,263.55/90,045.51
  6. Step 6: Final answer
    x = 68,664.79

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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.