Home / 56,409.30-77,846.40-31,258.80

Finding the Fourth Proportional to 56,409.30, 77,846.40 and 31,258.80

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Solution

The fourth proportional to 56,409.30, 77,846.40 and 31,258.80 is: 43,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,409.30 : 77,846.40 = 31,258.80 : x
  2. Step 2: Convert to fraction form
    56,409.30/77,846.40 = 31,258.80/x
  3. Step 3: Cross multiply
    56,409.30x = 77,846.40 × 31,258.80
  4. Step 4: Simplify right side
    56,409.30x = 2,433,385,048.32
  5. Step 5: Solve for x
    x = 2,433,385,048.32/56,409.30
  6. Step 6: Final answer
    x = 43,138.01

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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.