Home / 53,678.78-80,156.70-43,837.58

Finding the Fourth Proportional to 53,678.78, 80,156.70 and 43,837.58

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Solution

The fourth proportional to 53,678.78, 80,156.70 and 43,837.58 is: 65,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,678.78 : 80,156.70 = 43,837.58 : x
  2. Step 2: Convert to fraction form
    53,678.78/80,156.70 = 43,837.58/x
  3. Step 3: Cross multiply
    53,678.78x = 80,156.70 × 43,837.58
  4. Step 4: Simplify right side
    53,678.78x = 3,513,875,529.60
  5. Step 5: Solve for x
    x = 3,513,875,529.60/53,678.78
  6. Step 6: Final answer
    x = 65,461.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.