Home / 56,710.40-78,258.72-31,559.36

Finding the Fourth Proportional to 56,710.40, 78,258.72 and 31,559.36

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Solution

The fourth proportional to 56,710.40, 78,258.72 and 31,559.36 is: 43,551.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,710.40 : 78,258.72 = 31,559.36 : x
  2. Step 2: Convert to fraction form
    56,710.40/78,258.72 = 31,559.36/x
  3. Step 3: Cross multiply
    56,710.40x = 78,258.72 × 31,559.36
  4. Step 4: Simplify right side
    56,710.40x = 2,469,795,117.62
  5. Step 5: Solve for x
    x = 2,469,795,117.62/56,710.40
  6. Step 6: Final answer
    x = 43,551.01

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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.