Home / 83,457.78-115,108.96-57,964.18

Finding the Fourth Proportional to 83,457.78, 115,108.96 and 57,964.18

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Solution

The fourth proportional to 83,457.78, 115,108.96 and 57,964.18 is: 79,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,457.78 : 115,108.96 = 57,964.18 : x
  2. Step 2: Convert to fraction form
    83,457.78/115,108.96 = 57,964.18/x
  3. Step 3: Cross multiply
    83,457.78x = 115,108.96 × 57,964.18
  4. Step 4: Simplify right side
    83,457.78x = 6,672,196,477.05
  5. Step 5: Solve for x
    x = 6,672,196,477.05/83,457.78
  6. Step 6: Final answer
    x = 79,946.97

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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.