Home / 91,854.02-126,749.80-51,558.55

Finding the Fourth Proportional to 91,854.02, 126,749.80 and 51,558.55

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Solution

The fourth proportional to 91,854.02, 126,749.80 and 51,558.55 is: 71,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,854.02 : 126,749.80 = 51,558.55 : x
  2. Step 2: Convert to fraction form
    91,854.02/126,749.80 = 51,558.55/x
  3. Step 3: Cross multiply
    91,854.02x = 126,749.80 × 51,558.55
  4. Step 4: Simplify right side
    91,854.02x = 6,535,035,900.79
  5. Step 5: Solve for x
    x = 6,535,035,900.79/91,854.02
  6. Step 6: Final answer
    x = 71,145.89

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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.