Home / 76,386.74-105,414.84-42,397.43

Finding the Fourth Proportional to 76,386.74, 105,414.84 and 42,397.43

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Solution

The fourth proportional to 76,386.74, 105,414.84 and 42,397.43 is: 58,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,386.74 : 105,414.84 = 42,397.43 : x
  2. Step 2: Convert to fraction form
    76,386.74/105,414.84 = 42,397.43/x
  3. Step 3: Cross multiply
    76,386.74x = 105,414.84 × 42,397.43
  4. Step 4: Simplify right side
    76,386.74x = 4,469,317,772.79
  5. Step 5: Solve for x
    x = 4,469,317,772.79/76,386.74
  6. Step 6: Final answer
    x = 58,509.08

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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.