Home / 91,623.90-126,435.15-53,890.86

Finding the Fourth Proportional to 91,623.90, 126,435.15 and 53,890.86

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Solution

The fourth proportional to 91,623.90, 126,435.15 and 53,890.86 is: 74,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,623.90 : 126,435.15 = 53,890.86 : x
  2. Step 2: Convert to fraction form
    91,623.90/126,435.15 = 53,890.86/x
  3. Step 3: Cross multiply
    91,623.90x = 126,435.15 × 53,890.86
  4. Step 4: Simplify right side
    91,623.90x = 6,813,698,967.73
  5. Step 5: Solve for x
    x = 6,813,698,967.73/91,623.90
  6. Step 6: Final answer
    x = 74,365.96

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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.