Home / 75,815.07-104,558.32-60,702.21

Finding the Fourth Proportional to 75,815.07, 104,558.32 and 60,702.21

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Solution

The fourth proportional to 75,815.07, 104,558.32 and 60,702.21 is: 83,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815.07 : 104,558.32 = 60,702.21 : x
  2. Step 2: Convert to fraction form
    75,815.07/104,558.32 = 60,702.21/x
  3. Step 3: Cross multiply
    75,815.07x = 104,558.32 × 60,702.21
  4. Step 4: Simplify right side
    75,815.07x = 6,346,921,097.89
  5. Step 5: Solve for x
    x = 6,346,921,097.89/75,815.07
  6. Step 6: Final answer
    x = 83,715.82

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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.