Home / 61,897.10-85,223.76-54,621.68

Finding the Fourth Proportional to 61,897.10, 85,223.76 and 54,621.68

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Solution

The fourth proportional to 61,897.10, 85,223.76 and 54,621.68 is: 75,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,897.10 : 85,223.76 = 54,621.68 : x
  2. Step 2: Convert to fraction form
    61,897.10/85,223.76 = 54,621.68/x
  3. Step 3: Cross multiply
    61,897.10x = 85,223.76 × 54,621.68
  4. Step 4: Simplify right side
    61,897.10x = 4,655,064,947.12
  5. Step 5: Solve for x
    x = 4,655,064,947.12/61,897.10
  6. Step 6: Final answer
    x = 75,206.51

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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.