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Finding the Fourth Proportional to 91,592.53, 126,459.35 and 57,189.63

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Solution

The fourth proportional to 91,592.53, 126,459.35 and 57,189.63 is: 78,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,592.53 : 126,459.35 = 57,189.63 : x
  2. Step 2: Convert to fraction form
    91,592.53/126,459.35 = 57,189.63/x
  3. Step 3: Cross multiply
    91,592.53x = 126,459.35 × 57,189.63
  4. Step 4: Simplify right side
    91,592.53x = 7,232,163,436.54
  5. Step 5: Solve for x
    x = 7,232,163,436.54/91,592.53
  6. Step 6: Final answer
    x = 78,960.19

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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.