Home / 86,941.04-119,989.23-51,129.32

Finding the Fourth Proportional to 86,941.04, 119,989.23 and 51,129.32

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Solution

The fourth proportional to 86,941.04, 119,989.23 and 51,129.32 is: 70,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,941.04 : 119,989.23 = 51,129.32 : x
  2. Step 2: Convert to fraction form
    86,941.04/119,989.23 = 51,129.32/x
  3. Step 3: Cross multiply
    86,941.04x = 119,989.23 × 51,129.32
  4. Step 4: Simplify right side
    86,941.04x = 6,134,967,737.22
  5. Step 5: Solve for x
    x = 6,134,967,737.22/86,941.04
  6. Step 6: Final answer
    x = 70,564.69

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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.