Home / 97,085.40-145,648.89-54,985.38

Finding the Fourth Proportional to 97,085.40, 145,648.89 and 54,985.38

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Solution

The fourth proportional to 97,085.40, 145,648.89 and 54,985.38 is: 82,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,085.40 : 145,648.89 = 54,985.38 : x
  2. Step 2: Convert to fraction form
    97,085.40/145,648.89 = 54,985.38/x
  3. Step 3: Cross multiply
    97,085.40x = 145,648.89 × 54,985.38
  4. Step 4: Simplify right side
    97,085.40x = 8,008,559,563.23
  5. Step 5: Solve for x
    x = 8,008,559,563.23/97,085.40
  6. Step 6: Final answer
    x = 82,489.84

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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.