Home / 52,878.95-79,212.65-31,807.36

Finding the Fourth Proportional to 52,878.95, 79,212.65 and 31,807.36

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Solution

The fourth proportional to 52,878.95, 79,212.65 and 31,807.36 is: 47,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,878.95 : 79,212.65 = 31,807.36 : x
  2. Step 2: Convert to fraction form
    52,878.95/79,212.65 = 31,807.36/x
  3. Step 3: Cross multiply
    52,878.95x = 79,212.65 × 31,807.36
  4. Step 4: Simplify right side
    52,878.95x = 2,519,544,918.04
  5. Step 5: Solve for x
    x = 2,519,544,918.04/52,878.95
  6. Step 6: Final answer
    x = 47,647.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.