Home / 56,464.65-77,920.07-31,314.15

Finding the Fourth Proportional to 56,464.65, 77,920.07 and 31,314.15

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Solution

The fourth proportional to 56,464.65, 77,920.07 and 31,314.15 is: 43,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,464.65 : 77,920.07 = 31,314.15 : x
  2. Step 2: Convert to fraction form
    56,464.65/77,920.07 = 31,314.15/x
  3. Step 3: Cross multiply
    56,464.65x = 77,920.07 × 31,314.15
  4. Step 4: Simplify right side
    56,464.65x = 2,440,000,603.42
  5. Step 5: Solve for x
    x = 2,440,000,603.42/56,464.65
  6. Step 6: Final answer
    x = 43,212.89

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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.