Home / 86,898.32-119,932.50-55,070.12

Finding the Fourth Proportional to 86,898.32, 119,932.50 and 55,070.12

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Solution

The fourth proportional to 86,898.32, 119,932.50 and 55,070.12 is: 76,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,898.32 : 119,932.50 = 55,070.12 : x
  2. Step 2: Convert to fraction form
    86,898.32/119,932.50 = 55,070.12/x
  3. Step 3: Cross multiply
    86,898.32x = 119,932.50 × 55,070.12
  4. Step 4: Simplify right side
    86,898.32x = 6,604,697,166.90
  5. Step 5: Solve for x
    x = 6,604,697,166.90/86,898.32
  6. Step 6: Final answer
    x = 76,004.89

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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.