Home / 90,389.93-124,698.18-63,549.97

Finding the Fourth Proportional to 90,389.93, 124,698.18 and 63,549.97

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Solution

The fourth proportional to 90,389.93, 124,698.18 and 63,549.97 is: 87,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,389.93 : 124,698.18 = 63,549.97 : x
  2. Step 2: Convert to fraction form
    90,389.93/124,698.18 = 63,549.97/x
  3. Step 3: Cross multiply
    90,389.93x = 124,698.18 × 63,549.97
  4. Step 4: Simplify right side
    90,389.93x = 7,924,565,524.62
  5. Step 5: Solve for x
    x = 7,924,565,524.62/90,389.93
  6. Step 6: Final answer
    x = 87,670.89

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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.