Home / 86,284.02-129,372.42-36,338.40

Finding the Fourth Proportional to 86,284.02, 129,372.42 and 36,338.40

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Solution

The fourth proportional to 86,284.02, 129,372.42 and 36,338.40 is: 54,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,284.02 : 129,372.42 = 36,338.40 : x
  2. Step 2: Convert to fraction form
    86,284.02/129,372.42 = 36,338.40/x
  3. Step 3: Cross multiply
    86,284.02x = 129,372.42 × 36,338.40
  4. Step 4: Simplify right side
    86,284.02x = 4,701,186,746.93
  5. Step 5: Solve for x
    x = 4,701,186,746.93/86,284.02
  6. Step 6: Final answer
    x = 54,485.02

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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.