Home / 42,820.95-64,225.76-19,442.01

Finding the Fourth Proportional to 42,820.95, 64,225.76 and 19,442.01

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Solution

The fourth proportional to 42,820.95, 64,225.76 and 19,442.01 is: 29,160.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,820.95 : 64,225.76 = 19,442.01 : x
  2. Step 2: Convert to fraction form
    42,820.95/64,225.76 = 19,442.01/x
  3. Step 3: Cross multiply
    42,820.95x = 64,225.76 × 19,442.01
  4. Step 4: Simplify right side
    42,820.95x = 1,248,677,770.97
  5. Step 5: Solve for x
    x = 1,248,677,770.97/42,820.95
  6. Step 6: Final answer
    x = 29,160.44

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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.