Home / 56,998.25-78,656.21-31,155.64

Finding the Fourth Proportional to 56,998.25, 78,656.21 and 31,155.64

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Solution

The fourth proportional to 56,998.25, 78,656.21 and 31,155.64 is: 42,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.25 : 78,656.21 = 31,155.64 : x
  2. Step 2: Convert to fraction form
    56,998.25/78,656.21 = 31,155.64/x
  3. Step 3: Cross multiply
    56,998.25x = 78,656.21 × 31,155.64
  4. Step 4: Simplify right side
    56,998.25x = 2,450,584,443.77
  5. Step 5: Solve for x
    x = 2,450,584,443.77/56,998.25
  6. Step 6: Final answer
    x = 42,994.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.