Home / 56,647.65-78,173.81-31,154.42

Finding the Fourth Proportional to 56,647.65, 78,173.81 and 31,154.42

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Solution

The fourth proportional to 56,647.65, 78,173.81 and 31,154.42 is: 42,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,647.65 : 78,173.81 = 31,154.42 : x
  2. Step 2: Convert to fraction form
    56,647.65/78,173.81 = 31,154.42/x
  3. Step 3: Cross multiply
    56,647.65x = 78,173.81 × 31,154.42
  4. Step 4: Simplify right side
    56,647.65x = 2,435,459,866.23
  5. Step 5: Solve for x
    x = 2,435,459,866.23/56,647.65
  6. Step 6: Final answer
    x = 42,993.13

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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.