Home / 85,861.18-118,488.72-48,133

Finding the Fourth Proportional to 85,861.18, 118,488.72 and 48,133

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Solution

The fourth proportional to 85,861.18, 118,488.72 and 48,133 is: 66,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,861.18 : 118,488.72 = 48,133 : x
  2. Step 2: Convert to fraction form
    85,861.18/118,488.72 = 48,133/x
  3. Step 3: Cross multiply
    85,861.18x = 118,488.72 × 48,133
  4. Step 4: Simplify right side
    85,861.18x = 5,703,217,559.76
  5. Step 5: Solve for x
    x = 5,703,217,559.76/85,861.18
  6. Step 6: Final answer
    x = 66,423.70

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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.