Home / 86,681.51-130,033.10-29,766.45

Finding the Fourth Proportional to 86,681.51, 130,033.10 and 29,766.45

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Solution

The fourth proportional to 86,681.51, 130,033.10 and 29,766.45 is: 44,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,681.51 : 130,033.10 = 29,766.45 : x
  2. Step 2: Convert to fraction form
    86,681.51/130,033.10 = 29,766.45/x
  3. Step 3: Cross multiply
    86,681.51x = 130,033.10 × 29,766.45
  4. Step 4: Simplify right side
    86,681.51x = 3,870,623,620.66
  5. Step 5: Solve for x
    x = 3,870,623,620.66/86,681.51
  6. Step 6: Final answer
    x = 44,653.40

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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.