Home / 56,764.90-85,157.70-19,323.19

Finding the Fourth Proportional to 56,764.90, 85,157.70 and 19,323.19

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Solution

The fourth proportional to 56,764.90, 85,157.70 and 19,323.19 is: 28,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,764.90 : 85,157.70 = 19,323.19 : x
  2. Step 2: Convert to fraction form
    56,764.90/85,157.70 = 19,323.19/x
  3. Step 3: Cross multiply
    56,764.90x = 85,157.70 × 19,323.19
  4. Step 4: Simplify right side
    56,764.90x = 1,645,518,417.06
  5. Step 5: Solve for x
    x = 1,645,518,417.06/56,764.90
  6. Step 6: Final answer
    x = 28,988.31

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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.