Home / 64,868.31-89,526.87-38,021.40

Finding the Fourth Proportional to 64,868.31, 89,526.87 and 38,021.40

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Solution

The fourth proportional to 64,868.31, 89,526.87 and 38,021.40 is: 52,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.31 : 89,526.87 = 38,021.40 : x
  2. Step 2: Convert to fraction form
    64,868.31/89,526.87 = 38,021.40/x
  3. Step 3: Cross multiply
    64,868.31x = 89,526.87 × 38,021.40
  4. Step 4: Simplify right side
    64,868.31x = 3,403,936,935.02
  5. Step 5: Solve for x
    x = 3,403,936,935.02/64,868.31
  6. Step 6: Final answer
    x = 52,474.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.