Home / 65,139.84-97,638.08-42,623.46

Finding the Fourth Proportional to 65,139.84, 97,638.08 and 42,623.46

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Solution

The fourth proportional to 65,139.84, 97,638.08 and 42,623.46 is: 63,888.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,139.84 : 97,638.08 = 42,623.46 : x
  2. Step 2: Convert to fraction form
    65,139.84/97,638.08 = 42,623.46/x
  3. Step 3: Cross multiply
    65,139.84x = 97,638.08 × 42,623.46
  4. Step 4: Simplify right side
    65,139.84x = 4,161,672,584.24
  5. Step 5: Solve for x
    x = 4,161,672,584.24/65,139.84
  6. Step 6: Final answer
    x = 63,888.28

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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.