Home / 82,036.32-122,968.08-42,551.52

Finding the Fourth Proportional to 82,036.32, 122,968.08 and 42,551.52

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Solution

The fourth proportional to 82,036.32, 122,968.08 and 42,551.52 is: 63,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,036.32 : 122,968.08 = 42,551.52 : x
  2. Step 2: Convert to fraction form
    82,036.32/122,968.08 = 42,551.52/x
  3. Step 3: Cross multiply
    82,036.32x = 122,968.08 × 42,551.52
  4. Step 4: Simplify right side
    82,036.32x = 5,232,478,715.48
  5. Step 5: Solve for x
    x = 5,232,478,715.48/82,036.32
  6. Step 6: Final answer
    x = 63,782.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.