Home / 92,901.17-128,181.65-54,662.40

Finding the Fourth Proportional to 92,901.17, 128,181.65 and 54,662.40

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Solution

The fourth proportional to 92,901.17, 128,181.65 and 54,662.40 is: 75,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,901.17 : 128,181.65 = 54,662.40 : x
  2. Step 2: Convert to fraction form
    92,901.17/128,181.65 = 54,662.40/x
  3. Step 3: Cross multiply
    92,901.17x = 128,181.65 × 54,662.40
  4. Step 4: Simplify right side
    92,901.17x = 7,006,716,351.65
  5. Step 5: Solve for x
    x = 7,006,716,351.65/92,901.17
  6. Step 6: Final answer
    x = 75,421.18

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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.