Home / 145,385.50-217,988.93-56,535.43

Finding the Fourth Proportional to 145,385.50, 217,988.93 and 56,535.43

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Solution

The fourth proportional to 145,385.50, 217,988.93 and 56,535.43 is: 84,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,385.50 : 217,988.93 = 56,535.43 : x
  2. Step 2: Convert to fraction form
    145,385.50/217,988.93 = 56,535.43/x
  3. Step 3: Cross multiply
    145,385.50x = 217,988.93 × 56,535.43
  4. Step 4: Simplify right side
    145,385.50x = 12,324,097,892.79
  5. Step 5: Solve for x
    x = 12,324,097,892.79/145,385.50
  6. Step 6: Final answer
    x = 84,768.41

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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.