Home / 76,141.23-104,887.08-64,774.30

Finding the Fourth Proportional to 76,141.23, 104,887.08 and 64,774.30

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Solution

The fourth proportional to 76,141.23, 104,887.08 and 64,774.30 is: 89,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,141.23 : 104,887.08 = 64,774.30 : x
  2. Step 2: Convert to fraction form
    76,141.23/104,887.08 = 64,774.30/x
  3. Step 3: Cross multiply
    76,141.23x = 104,887.08 × 64,774.30
  4. Step 4: Simplify right side
    76,141.23x = 6,793,987,186.04
  5. Step 5: Solve for x
    x = 6,793,987,186.04/76,141.23
  6. Step 6: Final answer
    x = 89,228.76

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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.