Home / 191,629.40-287,487.30-58,515.80

Finding the Fourth Proportional to 191,629.40, 287,487.30 and 58,515.80

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Solution

The fourth proportional to 191,629.40, 287,487.30 and 58,515.80 is: 87,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,629.40 : 287,487.30 = 58,515.80 : x
  2. Step 2: Convert to fraction form
    191,629.40/287,487.30 = 58,515.80/x
  3. Step 3: Cross multiply
    191,629.40x = 287,487.30 × 58,515.80
  4. Step 4: Simplify right side
    191,629.40x = 16,822,549,349.34
  5. Step 5: Solve for x
    x = 16,822,549,349.34/191,629.40
  6. Step 6: Final answer
    x = 87,786.89

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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.