Home / 85,316.00-117,730.50-51,318.17

Finding the Fourth Proportional to 85,316.00, 117,730.50 and 51,318.17

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Solution

The fourth proportional to 85,316.00, 117,730.50 and 51,318.17 is: 70,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,316.00 : 117,730.50 = 51,318.17 : x
  2. Step 2: Convert to fraction form
    85,316.00/117,730.50 = 51,318.17/x
  3. Step 3: Cross multiply
    85,316.00x = 117,730.50 × 51,318.17
  4. Step 4: Simplify right side
    85,316.00x = 6,041,713,473.58
  5. Step 5: Solve for x
    x = 6,041,713,473.58/85,316.00
  6. Step 6: Final answer
    x = 70,815.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.