Home / 76,846.19-106,047.23-42,855.08

Finding the Fourth Proportional to 76,846.19, 106,047.23 and 42,855.08

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Solution

The fourth proportional to 76,846.19, 106,047.23 and 42,855.08 is: 59,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,846.19 : 106,047.23 = 42,855.08 : x
  2. Step 2: Convert to fraction form
    76,846.19/106,047.23 = 42,855.08/x
  3. Step 3: Cross multiply
    76,846.19x = 106,047.23 × 42,855.08
  4. Step 4: Simplify right side
    76,846.19x = 4,544,661,780.92
  5. Step 5: Solve for x
    x = 4,544,661,780.92/76,846.19
  6. Step 6: Final answer
    x = 59,139.72

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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.