Home / 90,054.81-124,275.06-49,770.90

Finding the Fourth Proportional to 90,054.81, 124,275.06 and 49,770.90

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Solution

The fourth proportional to 90,054.81, 124,275.06 and 49,770.90 is: 68,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,054.81 : 124,275.06 = 49,770.90 : x
  2. Step 2: Convert to fraction form
    90,054.81/124,275.06 = 49,770.90/x
  3. Step 3: Cross multiply
    90,054.81x = 124,275.06 × 49,770.90
  4. Step 4: Simplify right side
    90,054.81x = 6,185,281,583.75
  5. Step 5: Solve for x
    x = 6,185,281,583.75/90,054.81
  6. Step 6: Final answer
    x = 68,683.52

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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.