Home / 56,977.74-85,460.13-15,421.50

Finding the Fourth Proportional to 56,977.74, 85,460.13 and 15,421.50

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Solution

The fourth proportional to 56,977.74, 85,460.13 and 15,421.50 is: 23,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977.74 : 85,460.13 = 15,421.50 : x
  2. Step 2: Convert to fraction form
    56,977.74/85,460.13 = 15,421.50/x
  3. Step 3: Cross multiply
    56,977.74x = 85,460.13 × 15,421.50
  4. Step 4: Simplify right side
    56,977.74x = 1,317,923,394.80
  5. Step 5: Solve for x
    x = 1,317,923,394.80/56,977.74
  6. Step 6: Final answer
    x = 23,130.50

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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.