Home / 81,426.65-112,368.39-45,616.95

Finding the Fourth Proportional to 81,426.65, 112,368.39 and 45,616.95

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Solution

The fourth proportional to 81,426.65, 112,368.39 and 45,616.95 is: 62,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,426.65 : 112,368.39 = 45,616.95 : x
  2. Step 2: Convert to fraction form
    81,426.65/112,368.39 = 45,616.95/x
  3. Step 3: Cross multiply
    81,426.65x = 112,368.39 × 45,616.95
  4. Step 4: Simplify right side
    81,426.65x = 5,125,903,228.21
  5. Step 5: Solve for x
    x = 5,125,903,228.21/81,426.65
  6. Step 6: Final answer
    x = 62,951.18

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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.