Home / 65,068.08-97,679.76-38,785.20

Finding the Fourth Proportional to 65,068.08, 97,679.76 and 38,785.20

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Solution

The fourth proportional to 65,068.08, 97,679.76 and 38,785.20 is: 58,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,068.08 : 97,679.76 = 38,785.20 : x
  2. Step 2: Convert to fraction form
    65,068.08/97,679.76 = 38,785.20/x
  3. Step 3: Cross multiply
    65,068.08x = 97,679.76 × 38,785.20
  4. Step 4: Simplify right side
    65,068.08x = 3,788,529,027.55
  5. Step 5: Solve for x
    x = 3,788,529,027.55/65,068.08
  6. Step 6: Final answer
    x = 58,224.08

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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.