Home / 86,653.20-119,545.80-52,656.12

Finding the Fourth Proportional to 86,653.20, 119,545.80 and 52,656.12

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Solution

The fourth proportional to 86,653.20, 119,545.80 and 52,656.12 is: 72,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,653.20 : 119,545.80 = 52,656.12 : x
  2. Step 2: Convert to fraction form
    86,653.20/119,545.80 = 52,656.12/x
  3. Step 3: Cross multiply
    86,653.20x = 119,545.80 × 52,656.12
  4. Step 4: Simplify right side
    86,653.20x = 6,294,817,990.30
  5. Step 5: Solve for x
    x = 6,294,817,990.30/86,653.20
  6. Step 6: Final answer
    x = 72,643.80

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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.