Home / 42,739.20-58,959.36-30,136.32

Finding the Fourth Proportional to 42,739.20, 58,959.36 and 30,136.32

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Solution

The fourth proportional to 42,739.20, 58,959.36 and 30,136.32 is: 41,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,739.20 : 58,959.36 = 30,136.32 : x
  2. Step 2: Convert to fraction form
    42,739.20/58,959.36 = 30,136.32/x
  3. Step 3: Cross multiply
    42,739.20x = 58,959.36 × 30,136.32
  4. Step 4: Simplify right side
    42,739.20x = 1,776,818,139.96
  5. Step 5: Solve for x
    x = 1,776,818,139.96/42,739.20
  6. Step 6: Final answer
    x = 41,573.50

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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.