Home / 56,502.30-77,972.67-31,007.91

Finding the Fourth Proportional to 56,502.30, 77,972.67 and 31,007.91

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Solution

The fourth proportional to 56,502.30, 77,972.67 and 31,007.91 is: 42,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,502.30 : 77,972.67 = 31,007.91 : x
  2. Step 2: Convert to fraction form
    56,502.30/77,972.67 = 31,007.91/x
  3. Step 3: Cross multiply
    56,502.30x = 77,972.67 × 31,007.91
  4. Step 4: Simplify right side
    56,502.30x = 2,417,769,533.82
  5. Step 5: Solve for x
    x = 2,417,769,533.82/56,502.30
  6. Step 6: Final answer
    x = 42,790.64

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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.