Home / 56,870.50-85,305.75-15,317.50

Finding the Fourth Proportional to 56,870.50, 85,305.75 and 15,317.50

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Solution

The fourth proportional to 56,870.50, 85,305.75 and 15,317.50 is: 22,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,870.50 : 85,305.75 = 15,317.50 : x
  2. Step 2: Convert to fraction form
    56,870.50/85,305.75 = 15,317.50/x
  3. Step 3: Cross multiply
    56,870.50x = 85,305.75 × 15,317.50
  4. Step 4: Simplify right side
    56,870.50x = 1,306,670,825.63
  5. Step 5: Solve for x
    x = 1,306,670,825.63/56,870.50
  6. Step 6: Final answer
    x = 22,976.25

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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.