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Finding the Fourth Proportional to 86,666.94, 130,022.28 and 39,952.62

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Solution

The fourth proportional to 86,666.94, 130,022.28 and 39,952.62 is: 59,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,666.94 : 130,022.28 = 39,952.62 : x
  2. Step 2: Convert to fraction form
    86,666.94/130,022.28 = 39,952.62/x
  3. Step 3: Cross multiply
    86,666.94x = 130,022.28 × 39,952.62
  4. Step 4: Simplify right side
    86,666.94x = 5,194,730,744.37
  5. Step 5: Solve for x
    x = 5,194,730,744.37/86,666.94
  6. Step 6: Final answer
    x = 59,939.01

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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.