Home / 85,870.39-118,501.57-47,627.28

Finding the Fourth Proportional to 85,870.39, 118,501.57 and 47,627.28

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Solution

The fourth proportional to 85,870.39, 118,501.57 and 47,627.28 is: 65,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,870.39 : 118,501.57 = 47,627.28 : x
  2. Step 2: Convert to fraction form
    85,870.39/118,501.57 = 47,627.28/x
  3. Step 3: Cross multiply
    85,870.39x = 118,501.57 × 47,627.28
  4. Step 4: Simplify right side
    85,870.39x = 5,643,907,280.75
  5. Step 5: Solve for x
    x = 5,643,907,280.75/85,870.39
  6. Step 6: Final answer
    x = 65,725.88

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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.