Home / 91,277.60-136,929.36-28,102.98

Finding the Fourth Proportional to 91,277.60, 136,929.36 and 28,102.98

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Solution

The fourth proportional to 91,277.60, 136,929.36 and 28,102.98 is: 42,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,277.60 : 136,929.36 = 28,102.98 : x
  2. Step 2: Convert to fraction form
    91,277.60/136,929.36 = 28,102.98/x
  3. Step 3: Cross multiply
    91,277.60x = 136,929.36 × 28,102.98
  4. Step 4: Simplify right side
    91,277.60x = 3,848,123,065.49
  5. Step 5: Solve for x
    x = 3,848,123,065.49/91,277.60
  6. Step 6: Final answer
    x = 42,158.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.