Home / 56,423.04-77,866.48-31,272.56

Finding the Fourth Proportional to 56,423.04, 77,866.48 and 31,272.56

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Solution

The fourth proportional to 56,423.04, 77,866.48 and 31,272.56 is: 43,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,423.04 : 77,866.48 = 31,272.56 : x
  2. Step 2: Convert to fraction form
    56,423.04/77,866.48 = 31,272.56/x
  3. Step 3: Cross multiply
    56,423.04x = 77,866.48 × 31,272.56
  4. Step 4: Simplify right side
    56,423.04x = 2,435,084,167.79
  5. Step 5: Solve for x
    x = 2,435,084,167.79/56,423.04
  6. Step 6: Final answer
    x = 43,157.62

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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.