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Finding the Fourth Proportional to 76,238.88, 105,209.66 and 46,430.88

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Solution

The fourth proportional to 76,238.88, 105,209.66 and 46,430.88 is: 64,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,238.88 : 105,209.66 = 46,430.88 : x
  2. Step 2: Convert to fraction form
    76,238.88/105,209.66 = 46,430.88/x
  3. Step 3: Cross multiply
    76,238.88x = 105,209.66 × 46,430.88
  4. Step 4: Simplify right side
    76,238.88x = 4,884,977,098.30
  5. Step 5: Solve for x
    x = 4,884,977,098.30/76,238.88
  6. Step 6: Final answer
    x = 64,074.62

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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.