Home / 89,857.40-134,640.30-56,517.80

Finding the Fourth Proportional to 89,857.40, 134,640.30 and 56,517.80

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Solution

The fourth proportional to 89,857.40, 134,640.30 and 56,517.80 is: 84,685.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,857.40 : 134,640.30 = 56,517.80 : x
  2. Step 2: Convert to fraction form
    89,857.40/134,640.30 = 56,517.80/x
  3. Step 3: Cross multiply
    89,857.40x = 134,640.30 × 56,517.80
  4. Step 4: Simplify right side
    89,857.40x = 7,609,573,547.34
  5. Step 5: Solve for x
    x = 7,609,573,547.34/89,857.40
  6. Step 6: Final answer
    x = 84,685.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.