Home / 86,938.88-130,330.08-31,496

Finding the Fourth Proportional to 86,938.88, 130,330.08 and 31,496

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Solution

The fourth proportional to 86,938.88, 130,330.08 and 31,496 is: 47,215.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938.88 : 130,330.08 = 31,496 : x
  2. Step 2: Convert to fraction form
    86,938.88/130,330.08 = 31,496/x
  3. Step 3: Cross multiply
    86,938.88x = 130,330.08 × 31,496
  4. Step 4: Simplify right side
    86,938.88x = 4,104,876,199.68
  5. Step 5: Solve for x
    x = 4,104,876,199.68/86,938.88
  6. Step 6: Final answer
    x = 47,215.66

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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.