Home / 86,326.72-129,347.52-39,476.32

Finding the Fourth Proportional to 86,326.72, 129,347.52 and 39,476.32

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Solution

The fourth proportional to 86,326.72, 129,347.52 and 39,476.32 is: 59,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,326.72 : 129,347.52 = 39,476.32 : x
  2. Step 2: Convert to fraction form
    86,326.72/129,347.52 = 39,476.32/x
  3. Step 3: Cross multiply
    86,326.72x = 129,347.52 × 39,476.32
  4. Step 4: Simplify right side
    86,326.72x = 5,106,164,090.73
  5. Step 5: Solve for x
    x = 5,106,164,090.73/86,326.72
  6. Step 6: Final answer
    x = 59,149.29

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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.