Home / 91,427.49-126,174.11-55,611.45

Finding the Fourth Proportional to 91,427.49, 126,174.11 and 55,611.45

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Solution

The fourth proportional to 91,427.49, 126,174.11 and 55,611.45 is: 76,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,427.49 : 126,174.11 = 55,611.45 : x
  2. Step 2: Convert to fraction form
    91,427.49/126,174.11 = 55,611.45/x
  3. Step 3: Cross multiply
    91,427.49x = 126,174.11 × 55,611.45
  4. Step 4: Simplify right side
    91,427.49x = 7,016,724,931.50
  5. Step 5: Solve for x
    x = 7,016,724,931.50/91,427.49
  6. Step 6: Final answer
    x = 76,746.34

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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.