Home / 86,838.09-130,022.92-56,777.77

Finding the Fourth Proportional to 86,838.09, 130,022.92 and 56,777.77

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Solution

The fourth proportional to 86,838.09, 130,022.92 and 56,777.77 is: 85,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,838.09 : 130,022.92 = 56,777.77 : x
  2. Step 2: Convert to fraction form
    86,838.09/130,022.92 = 56,777.77/x
  3. Step 3: Cross multiply
    86,838.09x = 130,022.92 × 56,777.77
  4. Step 4: Simplify right side
    86,838.09x = 7,382,411,446.49
  5. Step 5: Solve for x
    x = 7,382,411,446.49/86,838.09
  6. Step 6: Final answer
    x = 85,013.52

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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.