Home / 86,485.50-119,288.07-56,214.36

Finding the Fourth Proportional to 86,485.50, 119,288.07 and 56,214.36

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Solution

The fourth proportional to 86,485.50, 119,288.07 and 56,214.36 is: 77,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.50 : 119,288.07 = 56,214.36 : x
  2. Step 2: Convert to fraction form
    86,485.50/119,288.07 = 56,214.36/x
  3. Step 3: Cross multiply
    86,485.50x = 119,288.07 × 56,214.36
  4. Step 4: Simplify right side
    86,485.50x = 6,705,702,510.69
  5. Step 5: Solve for x
    x = 6,705,702,510.69/86,485.50
  6. Step 6: Final answer
    x = 77,535.57

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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.