Home / 56,920.49-78,549.43-31,427.16

Finding the Fourth Proportional to 56,920.49, 78,549.43 and 31,427.16

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Solution

The fourth proportional to 56,920.49, 78,549.43 and 31,427.16 is: 43,369.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.49 : 78,549.43 = 31,427.16 : x
  2. Step 2: Convert to fraction form
    56,920.49/78,549.43 = 31,427.16/x
  3. Step 3: Cross multiply
    56,920.49x = 78,549.43 × 31,427.16
  4. Step 4: Simplify right side
    56,920.49x = 2,468,585,504.52
  5. Step 5: Solve for x
    x = 2,468,585,504.52/56,920.49
  6. Step 6: Final answer
    x = 43,369.01

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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.