Home / 56,616.08-78,131.40-31,465.04

Finding the Fourth Proportional to 56,616.08, 78,131.40 and 31,465.04

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Solution

The fourth proportional to 56,616.08, 78,131.40 and 31,465.04 is: 43,422.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,616.08 : 78,131.40 = 31,465.04 : x
  2. Step 2: Convert to fraction form
    56,616.08/78,131.40 = 31,465.04/x
  3. Step 3: Cross multiply
    56,616.08x = 78,131.40 × 31,465.04
  4. Step 4: Simplify right side
    56,616.08x = 2,458,407,626.26
  5. Step 5: Solve for x
    x = 2,458,407,626.26/56,616.08
  6. Step 6: Final answer
    x = 43,422.43

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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.