Home / 92,849.09-128,210.24-58,917.78

Finding the Fourth Proportional to 92,849.09, 128,210.24 and 58,917.78

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Solution

The fourth proportional to 92,849.09, 128,210.24 and 58,917.78 is: 81,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,849.09 : 128,210.24 = 58,917.78 : x
  2. Step 2: Convert to fraction form
    92,849.09/128,210.24 = 58,917.78/x
  3. Step 3: Cross multiply
    92,849.09x = 128,210.24 × 58,917.78
  4. Step 4: Simplify right side
    92,849.09x = 7,553,862,861.36
  5. Step 5: Solve for x
    x = 7,553,862,861.36/92,849.09
  6. Step 6: Final answer
    x = 81,356.35

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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.