Home / 86,677.61-129,794.43-59,986.64

Finding the Fourth Proportional to 86,677.61, 129,794.43 and 59,986.64

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Solution

The fourth proportional to 86,677.61, 129,794.43 and 59,986.64 is: 89,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,677.61 : 129,794.43 = 59,986.64 : x
  2. Step 2: Convert to fraction form
    86,677.61/129,794.43 = 59,986.64/x
  3. Step 3: Cross multiply
    86,677.61x = 129,794.43 × 59,986.64
  4. Step 4: Simplify right side
    86,677.61x = 7,785,931,746.42
  5. Step 5: Solve for x
    x = 7,785,931,746.42/86,677.61
  6. Step 6: Final answer
    x = 89,826.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.