Home / 89,855.40-134,637.30-56,515.80

Finding the Fourth Proportional to 89,855.40, 134,637.30 and 56,515.80

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Solution

The fourth proportional to 89,855.40, 134,637.30 and 56,515.80 is: 84,682.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,855.40 : 134,637.30 = 56,515.80 : x
  2. Step 2: Convert to fraction form
    89,855.40/134,637.30 = 56,515.80/x
  3. Step 3: Cross multiply
    89,855.40x = 134,637.30 × 56,515.80
  4. Step 4: Simplify right side
    89,855.40x = 7,609,134,719.34
  5. Step 5: Solve for x
    x = 7,609,134,719.34/89,855.40
  6. Step 6: Final answer
    x = 84,682.00

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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.