Home / 56,102.15-77,427.78-40,987.25

Finding the Fourth Proportional to 56,102.15, 77,427.78 and 40,987.25

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Solution

The fourth proportional to 56,102.15, 77,427.78 and 40,987.25 is: 56,567.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,102.15 : 77,427.78 = 40,987.25 : x
  2. Step 2: Convert to fraction form
    56,102.15/77,427.78 = 40,987.25/x
  3. Step 3: Cross multiply
    56,102.15x = 77,427.78 × 40,987.25
  4. Step 4: Simplify right side
    56,102.15x = 3,173,551,525.32
  5. Step 5: Solve for x
    x = 3,173,551,525.32/56,102.15
  6. Step 6: Final answer
    x = 56,567.38

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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.