Home / 86,053.46-128,803.77-45,972.23

Finding the Fourth Proportional to 86,053.46, 128,803.77 and 45,972.23

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Solution

The fourth proportional to 86,053.46, 128,803.77 and 45,972.23 is: 68,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,053.46 : 128,803.77 = 45,972.23 : x
  2. Step 2: Convert to fraction form
    86,053.46/128,803.77 = 45,972.23/x
  3. Step 3: Cross multiply
    86,053.46x = 128,803.77 × 45,972.23
  4. Step 4: Simplify right side
    86,053.46x = 5,921,395,895.29
  5. Step 5: Solve for x
    x = 5,921,395,895.29/86,053.46
  6. Step 6: Final answer
    x = 68,810.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.