Home / 55,871.48-77,080.66-31,985.28

Finding the Fourth Proportional to 55,871.48, 77,080.66 and 31,985.28

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Solution

The fourth proportional to 55,871.48, 77,080.66 and 31,985.28 is: 44,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,871.48 : 77,080.66 = 31,985.28 : x
  2. Step 2: Convert to fraction form
    55,871.48/77,080.66 = 31,985.28/x
  3. Step 3: Cross multiply
    55,871.48x = 77,080.66 × 31,985.28
  4. Step 4: Simplify right side
    55,871.48x = 2,465,446,492.68
  5. Step 5: Solve for x
    x = 2,465,446,492.68/55,871.48
  6. Step 6: Final answer
    x = 44,127.10

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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.