Home / 56,337-77,746.68-31,188.12

Finding the Fourth Proportional to 56,337, 77,746.68 and 31,188.12

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Solution

The fourth proportional to 56,337, 77,746.68 and 31,188.12 is: 43,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,337 : 77,746.68 = 31,188.12 : x
  2. Step 2: Convert to fraction form
    56,337/77,746.68 = 31,188.12/x
  3. Step 3: Cross multiply
    56,337x = 77,746.68 × 31,188.12
  4. Step 4: Simplify right side
    56,337x = 2,424,772,785.44
  5. Step 5: Solve for x
    x = 2,424,772,785.44/56,337
  6. Step 6: Final answer
    x = 43,040.50

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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.