Home / 56,968.40-78,616.32-31,817.90

Finding the Fourth Proportional to 56,968.40, 78,616.32 and 31,817.90

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Solution

The fourth proportional to 56,968.40, 78,616.32 and 31,817.90 is: 43,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,968.40 : 78,616.32 = 31,817.90 : x
  2. Step 2: Convert to fraction form
    56,968.40/78,616.32 = 31,817.90/x
  3. Step 3: Cross multiply
    56,968.40x = 78,616.32 × 31,817.90
  4. Step 4: Simplify right side
    56,968.40x = 2,501,406,208.13
  5. Step 5: Solve for x
    x = 2,501,406,208.13/56,968.40
  6. Step 6: Final answer
    x = 43,908.66

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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.