Home / 85,441.59-117,903.65-51,443.55

Finding the Fourth Proportional to 85,441.59, 117,903.65 and 51,443.55

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Solution

The fourth proportional to 85,441.59, 117,903.65 and 51,443.55 is: 70,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,441.59 : 117,903.65 = 51,443.55 : x
  2. Step 2: Convert to fraction form
    85,441.59/117,903.65 = 51,443.55/x
  3. Step 3: Cross multiply
    85,441.59x = 117,903.65 × 51,443.55
  4. Step 4: Simplify right side
    85,441.59x = 6,065,382,056.74
  5. Step 5: Solve for x
    x = 6,065,382,056.74/85,441.59
  6. Step 6: Final answer
    x = 70,988.64

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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.