Home / 56,417.40-77,855.85-31,266.90

Finding the Fourth Proportional to 56,417.40, 77,855.85 and 31,266.90

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Solution

The fourth proportional to 56,417.40, 77,855.85 and 31,266.90 is: 43,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,417.40 : 77,855.85 = 31,266.90 : x
  2. Step 2: Convert to fraction form
    56,417.40/77,855.85 = 31,266.90/x
  3. Step 3: Cross multiply
    56,417.40x = 77,855.85 × 31,266.90
  4. Step 4: Simplify right side
    56,417.40x = 2,434,311,076.37
  5. Step 5: Solve for x
    x = 2,434,311,076.37/56,417.40
  6. Step 6: Final answer
    x = 43,148.23

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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.