Home / 42,721.02-64,045.04-30,201.66

Finding the Fourth Proportional to 42,721.02, 64,045.04 and 30,201.66

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Solution

The fourth proportional to 42,721.02, 64,045.04 and 30,201.66 is: 45,276.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,721.02 : 64,045.04 = 30,201.66 : x
  2. Step 2: Convert to fraction form
    42,721.02/64,045.04 = 30,201.66/x
  3. Step 3: Cross multiply
    42,721.02x = 64,045.04 × 30,201.66
  4. Step 4: Simplify right side
    42,721.02x = 1,934,266,522.77
  5. Step 5: Solve for x
    x = 1,934,266,522.77/42,721.02
  6. Step 6: Final answer
    x = 45,276.69

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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.