Home / 91,205.16-125,840.86-53,472.12

Finding the Fourth Proportional to 91,205.16, 125,840.86 and 53,472.12

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Solution

The fourth proportional to 91,205.16, 125,840.86 and 53,472.12 is: 73,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,205.16 : 125,840.86 = 53,472.12 : x
  2. Step 2: Convert to fraction form
    91,205.16/125,840.86 = 53,472.12/x
  3. Step 3: Cross multiply
    91,205.16x = 125,840.86 × 53,472.12
  4. Step 4: Simplify right side
    91,205.16x = 6,728,977,566.82
  5. Step 5: Solve for x
    x = 6,728,977,566.82/91,205.16
  6. Step 6: Final answer
    x = 73,778.47

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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.