Home / 42,688.24-64,065.02-19,331.08

Finding the Fourth Proportional to 42,688.24, 64,065.02 and 19,331.08

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Solution

The fourth proportional to 42,688.24, 64,065.02 and 19,331.08 is: 29,011.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,688.24 : 64,065.02 = 19,331.08 : x
  2. Step 2: Convert to fraction form
    42,688.24/64,065.02 = 19,331.08/x
  3. Step 3: Cross multiply
    42,688.24x = 64,065.02 × 19,331.08
  4. Step 4: Simplify right side
    42,688.24x = 1,238,446,026.82
  5. Step 5: Solve for x
    x = 1,238,446,026.82/42,688.24
  6. Step 6: Final answer
    x = 29,011.41

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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.