Home / 84,515.10-116,506.53-64,336.86

Finding the Fourth Proportional to 84,515.10, 116,506.53 and 64,336.86

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Solution

The fourth proportional to 84,515.10, 116,506.53 and 64,336.86 is: 88,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,515.10 : 116,506.53 = 64,336.86 : x
  2. Step 2: Convert to fraction form
    84,515.10/116,506.53 = 64,336.86/x
  3. Step 3: Cross multiply
    84,515.10x = 116,506.53 × 64,336.86
  4. Step 4: Simplify right side
    84,515.10x = 7,495,664,309.70
  5. Step 5: Solve for x
    x = 7,495,664,309.70/84,515.10
  6. Step 6: Final answer
    x = 88,690.24

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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.