Home / 86,036.48-129,068.40-29,893.76

Finding the Fourth Proportional to 86,036.48, 129,068.40 and 29,893.76

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Solution

The fourth proportional to 86,036.48, 129,068.40 and 29,893.76 is: 44,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,036.48 : 129,068.40 = 29,893.76 : x
  2. Step 2: Convert to fraction form
    86,036.48/129,068.40 = 29,893.76/x
  3. Step 3: Cross multiply
    86,036.48x = 129,068.40 × 29,893.76
  4. Step 4: Simplify right side
    86,036.48x = 3,858,339,773.18
  5. Step 5: Solve for x
    x = 3,858,339,773.18/86,036.48
  6. Step 6: Final answer
    x = 44,845.39

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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.