Home / 61,678.32-85,116.81-36,185.13

Finding the Fourth Proportional to 61,678.32, 85,116.81 and 36,185.13

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Solution

The fourth proportional to 61,678.32, 85,116.81 and 36,185.13 is: 49,935.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,678.32 : 85,116.81 = 36,185.13 : x
  2. Step 2: Convert to fraction form
    61,678.32/85,116.81 = 36,185.13/x
  3. Step 3: Cross multiply
    61,678.32x = 85,116.81 × 36,185.13
  4. Step 4: Simplify right side
    61,678.32x = 3,079,962,835.04
  5. Step 5: Solve for x
    x = 3,079,962,835.04/61,678.32
  6. Step 6: Final answer
    x = 49,935.91

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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.