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Finding the Fourth Proportional to 92,857.62, 128,146.41 and 52,570.65

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Solution

The fourth proportional to 92,857.62, 128,146.41 and 52,570.65 is: 72,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,857.62 : 128,146.41 = 52,570.65 : x
  2. Step 2: Convert to fraction form
    92,857.62/128,146.41 = 52,570.65/x
  3. Step 3: Cross multiply
    92,857.62x = 128,146.41 × 52,570.65
  4. Step 4: Simplify right side
    92,857.62x = 6,736,740,068.87
  5. Step 5: Solve for x
    x = 6,736,740,068.87/92,857.62
  6. Step 6: Final answer
    x = 72,549.14

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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.