Home / 56,718.78-78,271.90-31,574.22

Finding the Fourth Proportional to 56,718.78, 78,271.90 and 31,574.22

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Solution

The fourth proportional to 56,718.78, 78,271.90 and 31,574.22 is: 43,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,718.78 : 78,271.90 = 31,574.22 : x
  2. Step 2: Convert to fraction form
    56,718.78/78,271.90 = 31,574.22/x
  3. Step 3: Cross multiply
    56,718.78x = 78,271.90 × 31,574.22
  4. Step 4: Simplify right side
    56,718.78x = 2,471,374,435.85
  5. Step 5: Solve for x
    x = 2,471,374,435.85/56,718.78
  6. Step 6: Final answer
    x = 43,572.42

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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.