Home / 56,496-77,964.27-31,002.80

Finding the Fourth Proportional to 56,496, 77,964.27 and 31,002.80

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Solution

The fourth proportional to 56,496, 77,964.27 and 31,002.80 is: 42,783.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,496 : 77,964.27 = 31,002.80 : x
  2. Step 2: Convert to fraction form
    56,496/77,964.27 = 31,002.80/x
  3. Step 3: Cross multiply
    56,496x = 77,964.27 × 31,002.80
  4. Step 4: Simplify right side
    56,496x = 2,417,110,280.13
  5. Step 5: Solve for x
    x = 2,417,110,280.13/56,496
  6. Step 6: Final answer
    x = 42,783.74

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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.