Home / 84,479.09-116,389.97-69,347.79

Finding the Fourth Proportional to 84,479.09, 116,389.97 and 69,347.79

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Solution

The fourth proportional to 84,479.09, 116,389.97 and 69,347.79 is: 95,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,479.09 : 116,389.97 = 69,347.79 : x
  2. Step 2: Convert to fraction form
    84,479.09/116,389.97 = 69,347.79/x
  3. Step 3: Cross multiply
    84,479.09x = 116,389.97 × 69,347.79
  4. Step 4: Simplify right side
    84,479.09x = 8,071,386,674.52
  5. Step 5: Solve for x
    x = 8,071,386,674.52/84,479.09
  6. Step 6: Final answer
    x = 95,543.01

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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.