Home / 86,509.61-119,386.11-50,208.31

Finding the Fourth Proportional to 86,509.61, 119,386.11 and 50,208.31

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Solution

The fourth proportional to 86,509.61, 119,386.11 and 50,208.31 is: 69,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,509.61 : 119,386.11 = 50,208.31 : x
  2. Step 2: Convert to fraction form
    86,509.61/119,386.11 = 50,208.31/x
  3. Step 3: Cross multiply
    86,509.61x = 119,386.11 × 50,208.31
  4. Step 4: Simplify right side
    86,509.61x = 5,994,174,820.57
  5. Step 5: Solve for x
    x = 5,994,174,820.57/86,509.61
  6. Step 6: Final answer
    x = 69,289.12

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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.