Home / 86,895.07-119,928.02-55,066.87

Finding the Fourth Proportional to 86,895.07, 119,928.02 and 55,066.87

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Solution

The fourth proportional to 86,895.07, 119,928.02 and 55,066.87 is: 76,000.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,895.07 : 119,928.02 = 55,066.87 : x
  2. Step 2: Convert to fraction form
    86,895.07/119,928.02 = 55,066.87/x
  3. Step 3: Cross multiply
    86,895.07x = 119,928.02 × 55,066.87
  4. Step 4: Simplify right side
    86,895.07x = 6,604,060,686.70
  5. Step 5: Solve for x
    x = 6,604,060,686.70/86,895.07
  6. Step 6: Final answer
    x = 76,000.41

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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.