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Finding the Fourth Proportional to 86,897.88, 130,265.58 and 30,706.56

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Solution

The fourth proportional to 86,897.88, 130,265.58 and 30,706.56 is: 46,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,897.88 : 130,265.58 = 30,706.56 : x
  2. Step 2: Convert to fraction form
    86,897.88/130,265.58 = 30,706.56/x
  3. Step 3: Cross multiply
    86,897.88x = 130,265.58 × 30,706.56
  4. Step 4: Simplify right side
    86,897.88x = 4,000,007,848.20
  5. Step 5: Solve for x
    x = 4,000,007,848.20/86,897.88
  6. Step 6: Final answer
    x = 46,031.13

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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.