Home / 56,490.09-77,953.73-30,995.90

Finding the Fourth Proportional to 56,490.09, 77,953.73 and 30,995.90

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Solution

The fourth proportional to 56,490.09, 77,953.73 and 30,995.90 is: 42,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,490.09 : 77,953.73 = 30,995.90 : x
  2. Step 2: Convert to fraction form
    56,490.09/77,953.73 = 30,995.90/x
  3. Step 3: Cross multiply
    56,490.09x = 77,953.73 × 30,995.90
  4. Step 4: Simplify right side
    56,490.09x = 2,416,245,474.96
  5. Step 5: Solve for x
    x = 2,416,245,474.96/56,490.09
  6. Step 6: Final answer
    x = 42,772.91

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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.