Home / 81,205.29-121,814.10-22,045.58

Finding the Fourth Proportional to 81,205.29, 121,814.10 and 22,045.58

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Solution

The fourth proportional to 81,205.29, 121,814.10 and 22,045.58 is: 33,070.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,205.29 : 121,814.10 = 22,045.58 : x
  2. Step 2: Convert to fraction form
    81,205.29/121,814.10 = 22,045.58/x
  3. Step 3: Cross multiply
    81,205.29x = 121,814.10 × 22,045.58
  4. Step 4: Simplify right side
    81,205.29x = 2,685,461,877.61
  5. Step 5: Solve for x
    x = 2,685,461,877.61/81,205.29
  6. Step 6: Final answer
    x = 33,070.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.