Home / 56,637.33-78,161.53-31,145.65

Finding the Fourth Proportional to 56,637.33, 78,161.53 and 31,145.65

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Solution

The fourth proportional to 56,637.33, 78,161.53 and 31,145.65 is: 42,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,637.33 : 78,161.53 = 31,145.65 : x
  2. Step 2: Convert to fraction form
    56,637.33/78,161.53 = 31,145.65/x
  3. Step 3: Cross multiply
    56,637.33x = 78,161.53 × 31,145.65
  4. Step 4: Simplify right side
    56,637.33x = 2,434,391,501.12
  5. Step 5: Solve for x
    x = 2,434,391,501.12/56,637.33
  6. Step 6: Final answer
    x = 42,982.10

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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.