Home / 90,558.04-135,817.64-56,807.80

Finding the Fourth Proportional to 90,558.04, 135,817.64 and 56,807.80

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Solution

The fourth proportional to 90,558.04, 135,817.64 and 56,807.80 is: 85,199.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,558.04 : 135,817.64 = 56,807.80 : x
  2. Step 2: Convert to fraction form
    90,558.04/135,817.64 = 56,807.80/x
  3. Step 3: Cross multiply
    90,558.04x = 135,817.64 × 56,807.80
  4. Step 4: Simplify right side
    90,558.04x = 7,715,501,329.59
  5. Step 5: Solve for x
    x = 7,715,501,329.59/90,558.04
  6. Step 6: Final answer
    x = 85,199.52

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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.