Home / 42,990.01-64,487.08-18,030.87

Finding the Fourth Proportional to 42,990.01, 64,487.08 and 18,030.87

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Solution

The fourth proportional to 42,990.01, 64,487.08 and 18,030.87 is: 27,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,990.01 : 64,487.08 = 18,030.87 : x
  2. Step 2: Convert to fraction form
    42,990.01/64,487.08 = 18,030.87/x
  3. Step 3: Cross multiply
    42,990.01x = 64,487.08 × 18,030.87
  4. Step 4: Simplify right side
    42,990.01x = 1,162,758,156.16
  5. Step 5: Solve for x
    x = 1,162,758,156.16/42,990.01
  6. Step 6: Final answer
    x = 27,047.17

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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.