Home / 105,626.10-145,767.40-57,882.50

Finding the Fourth Proportional to 105,626.10, 145,767.40 and 57,882.50

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Solution

The fourth proportional to 105,626.10, 145,767.40 and 57,882.50 is: 79,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,626.10 : 145,767.40 = 57,882.50 : x
  2. Step 2: Convert to fraction form
    105,626.10/145,767.40 = 57,882.50/x
  3. Step 3: Cross multiply
    105,626.10x = 145,767.40 × 57,882.50
  4. Step 4: Simplify right side
    105,626.10x = 8,437,381,530.50
  5. Step 5: Solve for x
    x = 8,437,381,530.50/105,626.10
  6. Step 6: Final answer
    x = 79,879.70

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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.