Home / 92,754.19-128,000.13-50,312.77

Finding the Fourth Proportional to 92,754.19, 128,000.13 and 50,312.77

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Solution

The fourth proportional to 92,754.19, 128,000.13 and 50,312.77 is: 69,431.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,754.19 : 128,000.13 = 50,312.77 : x
  2. Step 2: Convert to fraction form
    92,754.19/128,000.13 = 50,312.77/x
  3. Step 3: Cross multiply
    92,754.19x = 128,000.13 × 50,312.77
  4. Step 4: Simplify right side
    92,754.19x = 6,440,041,100.66
  5. Step 5: Solve for x
    x = 6,440,041,100.66/92,754.19
  6. Step 6: Final answer
    x = 69,431.27

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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.