Home / 56,985.36-78,639.50-31,493.52

Finding the Fourth Proportional to 56,985.36, 78,639.50 and 31,493.52

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Solution

The fourth proportional to 56,985.36, 78,639.50 and 31,493.52 is: 43,460.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,985.36 : 78,639.50 = 31,493.52 : x
  2. Step 2: Convert to fraction form
    56,985.36/78,639.50 = 31,493.52/x
  3. Step 3: Cross multiply
    56,985.36x = 78,639.50 × 31,493.52
  4. Step 4: Simplify right side
    56,985.36x = 2,476,634,666.04
  5. Step 5: Solve for x
    x = 2,476,634,666.04/56,985.36
  6. Step 6: Final answer
    x = 43,460.89

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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.