Home / 84,478.17-116,590.49-55,430.97

Finding the Fourth Proportional to 84,478.17, 116,590.49 and 55,430.97

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Solution

The fourth proportional to 84,478.17, 116,590.49 and 55,430.97 is: 76,501.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,478.17 : 116,590.49 = 55,430.97 : x
  2. Step 2: Convert to fraction form
    84,478.17/116,590.49 = 55,430.97/x
  3. Step 3: Cross multiply
    84,478.17x = 116,590.49 × 55,430.97
  4. Step 4: Simplify right side
    84,478.17x = 6,462,723,446.97
  5. Step 5: Solve for x
    x = 6,462,723,446.97/84,478.17
  6. Step 6: Final answer
    x = 76,501.69

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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.