Home / 56,617.48-78,127.36-31,122.46

Finding the Fourth Proportional to 56,617.48, 78,127.36 and 31,122.46

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Solution

The fourth proportional to 56,617.48, 78,127.36 and 31,122.46 is: 42,946.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,617.48 : 78,127.36 = 31,122.46 : x
  2. Step 2: Convert to fraction form
    56,617.48/78,127.36 = 31,122.46/x
  3. Step 3: Cross multiply
    56,617.48x = 78,127.36 × 31,122.46
  4. Step 4: Simplify right side
    56,617.48x = 2,431,515,636.51
  5. Step 5: Solve for x
    x = 2,431,515,636.51/56,617.48
  6. Step 6: Final answer
    x = 42,946.38

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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.