Home / 91,807.07-126,698.60-51,518.75

Finding the Fourth Proportional to 91,807.07, 126,698.60 and 51,518.75

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Solution

The fourth proportional to 91,807.07, 126,698.60 and 51,518.75 is: 71,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,807.07 : 126,698.60 = 51,518.75 : x
  2. Step 2: Convert to fraction form
    91,807.07/126,698.60 = 51,518.75/x
  3. Step 3: Cross multiply
    91,807.07x = 126,698.60 × 51,518.75
  4. Step 4: Simplify right side
    91,807.07x = 6,527,353,241.16
  5. Step 5: Solve for x
    x = 6,527,353,241.16/91,807.07
  6. Step 6: Final answer
    x = 71,098.59

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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.