Home / 56,261.18-77,639.25-30,767.26

Finding the Fourth Proportional to 56,261.18, 77,639.25 and 30,767.26

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Solution

The fourth proportional to 56,261.18, 77,639.25 and 30,767.26 is: 42,458.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,261.18 : 77,639.25 = 30,767.26 : x
  2. Step 2: Convert to fraction form
    56,261.18/77,639.25 = 30,767.26/x
  3. Step 3: Cross multiply
    56,261.18x = 77,639.25 × 30,767.26
  4. Step 4: Simplify right side
    56,261.18x = 2,388,746,990.96
  5. Step 5: Solve for x
    x = 2,388,746,990.96/56,261.18
  6. Step 6: Final answer
    x = 42,458.17

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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.