Home / 92,851.23-128,134.70-50,409.77

Finding the Fourth Proportional to 92,851.23, 128,134.70 and 50,409.77

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Solution

The fourth proportional to 92,851.23, 128,134.70 and 50,409.77 is: 69,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,851.23 : 128,134.70 = 50,409.77 : x
  2. Step 2: Convert to fraction form
    92,851.23/128,134.70 = 50,409.77/x
  3. Step 3: Cross multiply
    92,851.23x = 128,134.70 × 50,409.77
  4. Step 4: Simplify right side
    92,851.23x = 6,459,239,863.30
  5. Step 5: Solve for x
    x = 6,459,239,863.30/92,851.23
  6. Step 6: Final answer
    x = 69,565.47

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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.