Home / 90,051.08-124,259.56-49,765.50

Finding the Fourth Proportional to 90,051.08, 124,259.56 and 49,765.50

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Solution

The fourth proportional to 90,051.08, 124,259.56 and 49,765.50 is: 68,670.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,051.08 : 124,259.56 = 49,765.50 : x
  2. Step 2: Convert to fraction form
    90,051.08/124,259.56 = 49,765.50/x
  3. Step 3: Cross multiply
    90,051.08x = 124,259.56 × 49,765.50
  4. Step 4: Simplify right side
    90,051.08x = 6,183,839,008.77
  5. Step 5: Solve for x
    x = 6,183,839,008.77/90,051.08
  6. Step 6: Final answer
    x = 68,670.35

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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.