Home / 91,116.81-136,675.08-48,938.85

Finding the Fourth Proportional to 91,116.81, 136,675.08 and 48,938.85

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Solution

The fourth proportional to 91,116.81, 136,675.08 and 48,938.85 is: 73,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,116.81 : 136,675.08 = 48,938.85 : x
  2. Step 2: Convert to fraction form
    91,116.81/136,675.08 = 48,938.85/x
  3. Step 3: Cross multiply
    91,116.81x = 136,675.08 × 48,938.85
  4. Step 4: Simplify right side
    91,116.81x = 6,688,721,238.86
  5. Step 5: Solve for x
    x = 6,688,721,238.86/91,116.81
  6. Step 6: Final answer
    x = 73,408.20

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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.