Home / 56,521.45-78,004.38-31,032.13

Finding the Fourth Proportional to 56,521.45, 78,004.38 and 31,032.13

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Solution

The fourth proportional to 56,521.45, 78,004.38 and 31,032.13 is: 42,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,521.45 : 78,004.38 = 31,032.13 : x
  2. Step 2: Convert to fraction form
    56,521.45/78,004.38 = 31,032.13/x
  3. Step 3: Cross multiply
    56,521.45x = 78,004.38 × 31,032.13
  4. Step 4: Simplify right side
    56,521.45x = 2,420,642,060.73
  5. Step 5: Solve for x
    x = 2,420,642,060.73/56,521.45
  6. Step 6: Final answer
    x = 42,826.96

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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.