Home / 86,088.60-118,768.26-49,783.38

Finding the Fourth Proportional to 86,088.60, 118,768.26 and 49,783.38

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Solution

The fourth proportional to 86,088.60, 118,768.26 and 49,783.38 is: 68,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,088.60 : 118,768.26 = 49,783.38 : x
  2. Step 2: Convert to fraction form
    86,088.60/118,768.26 = 49,783.38/x
  3. Step 3: Cross multiply
    86,088.60x = 118,768.26 × 49,783.38
  4. Step 4: Simplify right side
    86,088.60x = 5,912,685,419.52
  5. Step 5: Solve for x
    x = 5,912,685,419.52/86,088.60
  6. Step 6: Final answer
    x = 68,681.40

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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.