Home / 56,466.72-77,920.56-31,315.68

Finding the Fourth Proportional to 56,466.72, 77,920.56 and 31,315.68

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Solution

The fourth proportional to 56,466.72, 77,920.56 and 31,315.68 is: 43,213.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,466.72 : 77,920.56 = 31,315.68 : x
  2. Step 2: Convert to fraction form
    56,466.72/77,920.56 = 31,315.68/x
  3. Step 3: Cross multiply
    56,466.72x = 77,920.56 × 31,315.68
  4. Step 4: Simplify right side
    56,466.72x = 2,440,135,322.38
  5. Step 5: Solve for x
    x = 2,440,135,322.38/56,466.72
  6. Step 6: Final answer
    x = 43,213.69

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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.