Home / 76,515.39-105,584.51-42,521.74

Finding the Fourth Proportional to 76,515.39, 105,584.51 and 42,521.74

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Solution

The fourth proportional to 76,515.39, 105,584.51 and 42,521.74 is: 58,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,515.39 : 105,584.51 = 42,521.74 : x
  2. Step 2: Convert to fraction form
    76,515.39/105,584.51 = 42,521.74/x
  3. Step 3: Cross multiply
    76,515.39x = 105,584.51 × 42,521.74
  4. Step 4: Simplify right side
    76,515.39x = 4,489,636,924.59
  5. Step 5: Solve for x
    x = 4,489,636,924.59/76,515.39
  6. Step 6: Final answer
    x = 58,676.26

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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.