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Finding the Fourth Proportional to 91,695.65, 126,562.50 and 55,905.39

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Solution

The fourth proportional to 91,695.65, 126,562.50 and 55,905.39 is: 77,163.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,695.65 : 126,562.50 = 55,905.39 : x
  2. Step 2: Convert to fraction form
    91,695.65/126,562.50 = 55,905.39/x
  3. Step 3: Cross multiply
    91,695.65x = 126,562.50 × 55,905.39
  4. Step 4: Simplify right side
    91,695.65x = 7,075,525,921.88
  5. Step 5: Solve for x
    x = 7,075,525,921.88/91,695.65
  6. Step 6: Final answer
    x = 77,163.16

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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.