Home / 92,854.09-128,138.28-50,412.61

Finding the Fourth Proportional to 92,854.09, 128,138.28 and 50,412.61

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Solution

The fourth proportional to 92,854.09, 128,138.28 and 50,412.61 is: 69,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,854.09 : 128,138.28 = 50,412.61 : x
  2. Step 2: Convert to fraction form
    92,854.09/128,138.28 = 50,412.61/x
  3. Step 3: Cross multiply
    92,854.09x = 128,138.28 × 50,412.61
  4. Step 4: Simplify right side
    92,854.09x = 6,459,785,135.71
  5. Step 5: Solve for x
    x = 6,459,785,135.71/92,854.09
  6. Step 6: Final answer
    x = 69,569.20

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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.