Home / 56,985.03-85,431.74-39,162.87

Finding the Fourth Proportional to 56,985.03, 85,431.74 and 39,162.87

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Solution

The fourth proportional to 56,985.03, 85,431.74 and 39,162.87 is: 58,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,985.03 : 85,431.74 = 39,162.87 : x
  2. Step 2: Convert to fraction form
    56,985.03/85,431.74 = 39,162.87/x
  3. Step 3: Cross multiply
    56,985.03x = 85,431.74 × 39,162.87
  4. Step 4: Simplify right side
    56,985.03x = 3,345,751,931.68
  5. Step 5: Solve for x
    x = 3,345,751,931.68/56,985.03
  6. Step 6: Final answer
    x = 58,712.82

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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.