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Finding the Fourth Proportional to 91,359.70, 126,077.08 and 51,075.10

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Solution

The fourth proportional to 91,359.70, 126,077.08 and 51,075.10 is: 70,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,359.70 : 126,077.08 = 51,075.10 : x
  2. Step 2: Convert to fraction form
    91,359.70/126,077.08 = 51,075.10/x
  3. Step 3: Cross multiply
    91,359.70x = 126,077.08 × 51,075.10
  4. Step 4: Simplify right side
    91,359.70x = 6,439,399,468.71
  5. Step 5: Solve for x
    x = 6,439,399,468.71/91,359.70
  6. Step 6: Final answer
    x = 70,484.03

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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.