Home / 56,623.44-78,141.86-31,130.88

Finding the Fourth Proportional to 56,623.44, 78,141.86 and 31,130.88

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Solution

The fourth proportional to 56,623.44, 78,141.86 and 31,130.88 is: 42,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,623.44 : 78,141.86 = 31,130.88 : x
  2. Step 2: Convert to fraction form
    56,623.44/78,141.86 = 31,130.88/x
  3. Step 3: Cross multiply
    56,623.44x = 78,141.86 × 31,130.88
  4. Step 4: Simplify right side
    56,623.44x = 2,432,624,866.64
  5. Step 5: Solve for x
    x = 2,432,624,866.64/56,623.44
  6. Step 6: Final answer
    x = 42,961.45

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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.