Home / 86,869.98-130,221.74-27,667.28

Finding the Fourth Proportional to 86,869.98, 130,221.74 and 27,667.28

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Solution

The fourth proportional to 86,869.98, 130,221.74 and 27,667.28 is: 41,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,869.98 : 130,221.74 = 27,667.28 : x
  2. Step 2: Convert to fraction form
    86,869.98/130,221.74 = 27,667.28/x
  3. Step 3: Cross multiply
    86,869.98x = 130,221.74 × 27,667.28
  4. Step 4: Simplify right side
    86,869.98x = 3,602,881,737.39
  5. Step 5: Solve for x
    x = 3,602,881,737.39/86,869.98
  6. Step 6: Final answer
    x = 41,474.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.