Home / 91,782.12-126,567.78-58,266.60

Finding the Fourth Proportional to 91,782.12, 126,567.78 and 58,266.60

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Solution

The fourth proportional to 91,782.12, 126,567.78 and 58,266.60 is: 80,349.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,782.12 : 126,567.78 = 58,266.60 : x
  2. Step 2: Convert to fraction form
    91,782.12/126,567.78 = 58,266.60/x
  3. Step 3: Cross multiply
    91,782.12x = 126,567.78 × 58,266.60
  4. Step 4: Simplify right side
    91,782.12x = 7,374,674,210.15
  5. Step 5: Solve for x
    x = 7,374,674,210.15/91,782.12
  6. Step 6: Final answer
    x = 80,349.79

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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.