Home / 86,887.30-119,909.16-52,890.40

Finding the Fourth Proportional to 86,887.30, 119,909.16 and 52,890.40

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Solution

The fourth proportional to 86,887.30, 119,909.16 and 52,890.40 is: 72,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,887.30 : 119,909.16 = 52,890.40 : x
  2. Step 2: Convert to fraction form
    86,887.30/119,909.16 = 52,890.40/x
  3. Step 3: Cross multiply
    86,887.30x = 119,909.16 × 52,890.40
  4. Step 4: Simplify right side
    86,887.30x = 6,342,043,436.06
  5. Step 5: Solve for x
    x = 6,342,043,436.06/86,887.30
  6. Step 6: Final answer
    x = 72,991.60

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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.