Home / 56,724.64-78,280.40-31,230.32

Finding the Fourth Proportional to 56,724.64, 78,280.40 and 31,230.32

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Solution

The fourth proportional to 56,724.64, 78,280.40 and 31,230.32 is: 43,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,724.64 : 78,280.40 = 31,230.32 : x
  2. Step 2: Convert to fraction form
    56,724.64/78,280.40 = 31,230.32/x
  3. Step 3: Cross multiply
    56,724.64x = 78,280.40 × 31,230.32
  4. Step 4: Simplify right side
    56,724.64x = 2,444,721,941.73
  5. Step 5: Solve for x
    x = 2,444,721,941.73/56,724.64
  6. Step 6: Final answer
    x = 43,098.06

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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.