Home / 86,141.23-118,866.35-53,869.61

Finding the Fourth Proportional to 86,141.23, 118,866.35 and 53,869.61

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Solution

The fourth proportional to 86,141.23, 118,866.35 and 53,869.61 is: 74,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,141.23 : 118,866.35 = 53,869.61 : x
  2. Step 2: Convert to fraction form
    86,141.23/118,866.35 = 53,869.61/x
  3. Step 3: Cross multiply
    86,141.23x = 118,866.35 × 53,869.61
  4. Step 4: Simplify right side
    86,141.23x = 6,403,284,348.46
  5. Step 5: Solve for x
    x = 6,403,284,348.46/86,141.23
  6. Step 6: Final answer
    x = 74,334.72

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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.