Home / 56,153.16-77,491.94-31,002.60

Finding the Fourth Proportional to 56,153.16, 77,491.94 and 31,002.60

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Solution

The fourth proportional to 56,153.16, 77,491.94 and 31,002.60 is: 42,783.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,153.16 : 77,491.94 = 31,002.60 : x
  2. Step 2: Convert to fraction form
    56,153.16/77,491.94 = 31,002.60/x
  3. Step 3: Cross multiply
    56,153.16x = 77,491.94 × 31,002.60
  4. Step 4: Simplify right side
    56,153.16x = 2,402,451,619.04
  5. Step 5: Solve for x
    x = 2,402,451,619.04/56,153.16
  6. Step 6: Final answer
    x = 42,783.91

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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.