Home / 56,275.50-77,662.63-31,125.02

Finding the Fourth Proportional to 56,275.50, 77,662.63 and 31,125.02

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Solution

The fourth proportional to 56,275.50, 77,662.63 and 31,125.02 is: 42,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,275.50 : 77,662.63 = 31,125.02 : x
  2. Step 2: Convert to fraction form
    56,275.50/77,662.63 = 31,125.02/x
  3. Step 3: Cross multiply
    56,275.50x = 77,662.63 × 31,125.02
  4. Step 4: Simplify right side
    56,275.50x = 2,417,250,912.00
  5. Step 5: Solve for x
    x = 2,417,250,912.00/56,275.50
  6. Step 6: Final answer
    x = 42,953.88

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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.