Home / 72,351.22-108,395.40-70,776.58

Finding the Fourth Proportional to 72,351.22, 108,395.40 and 70,776.58

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Solution

The fourth proportional to 72,351.22, 108,395.40 and 70,776.58 is: 106,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,351.22 : 108,395.40 = 70,776.58 : x
  2. Step 2: Convert to fraction form
    72,351.22/108,395.40 = 70,776.58/x
  3. Step 3: Cross multiply
    72,351.22x = 108,395.40 × 70,776.58
  4. Step 4: Simplify right side
    72,351.22x = 7,671,855,699.73
  5. Step 5: Solve for x
    x = 7,671,855,699.73/72,351.22
  6. Step 6: Final answer
    x = 106,036.30

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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.