Home / 81,547.41-112,487.62-51,284.73

Finding the Fourth Proportional to 81,547.41, 112,487.62 and 51,284.73

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Solution

The fourth proportional to 81,547.41, 112,487.62 and 51,284.73 is: 70,742.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,547.41 : 112,487.62 = 51,284.73 : x
  2. Step 2: Convert to fraction form
    81,547.41/112,487.62 = 51,284.73/x
  3. Step 3: Cross multiply
    81,547.41x = 112,487.62 × 51,284.73
  4. Step 4: Simplify right side
    81,547.41x = 5,768,897,220.04
  5. Step 5: Solve for x
    x = 5,768,897,220.04/81,547.41
  6. Step 6: Final answer
    x = 70,742.86

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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.