Home / 56,130.31-77,467.26-39,123.55

Finding the Fourth Proportional to 56,130.31, 77,467.26 and 39,123.55

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Solution

The fourth proportional to 56,130.31, 77,467.26 and 39,123.55 is: 53,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,130.31 : 77,467.26 = 39,123.55 : x
  2. Step 2: Convert to fraction form
    56,130.31/77,467.26 = 39,123.55/x
  3. Step 3: Cross multiply
    56,130.31x = 77,467.26 × 39,123.55
  4. Step 4: Simplify right side
    56,130.31x = 3,030,794,219.97
  5. Step 5: Solve for x
    x = 3,030,794,219.97/56,130.31
  6. Step 6: Final answer
    x = 53,995.68

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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.