Home / 92,818.16-128,089.04-50,376.72

Finding the Fourth Proportional to 92,818.16, 128,089.04 and 50,376.72

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Solution

The fourth proportional to 92,818.16, 128,089.04 and 50,376.72 is: 69,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,818.16 : 128,089.04 = 50,376.72 : x
  2. Step 2: Convert to fraction form
    92,818.16/128,089.04 = 50,376.72/x
  3. Step 3: Cross multiply
    92,818.16x = 128,089.04 × 50,376.72
  4. Step 4: Simplify right side
    92,818.16x = 6,452,705,703.15
  5. Step 5: Solve for x
    x = 6,452,705,703.15/92,818.16
  6. Step 6: Final answer
    x = 69,519.86

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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.