Home / 76,971.36-106,218.48-43,437.12

Finding the Fourth Proportional to 76,971.36, 106,218.48 and 43,437.12

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Solution

The fourth proportional to 76,971.36, 106,218.48 and 43,437.12 is: 59,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971.36 : 106,218.48 = 43,437.12 : x
  2. Step 2: Convert to fraction form
    76,971.36/106,218.48 = 43,437.12/x
  3. Step 3: Cross multiply
    76,971.36x = 106,218.48 × 43,437.12
  4. Step 4: Simplify right side
    76,971.36x = 4,613,824,861.98
  5. Step 5: Solve for x
    x = 4,613,824,861.98/76,971.36
  6. Step 6: Final answer
    x = 59,942.10

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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.