Home / 65,138.04-97,707.02-18,390.92

Finding the Fourth Proportional to 65,138.04, 97,707.02 and 18,390.92

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Solution

The fourth proportional to 65,138.04, 97,707.02 and 18,390.92 is: 27,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,138.04 : 97,707.02 = 18,390.92 : x
  2. Step 2: Convert to fraction form
    65,138.04/97,707.02 = 18,390.92/x
  3. Step 3: Cross multiply
    65,138.04x = 97,707.02 × 18,390.92
  4. Step 4: Simplify right side
    65,138.04x = 1,796,921,407.77
  5. Step 5: Solve for x
    x = 1,796,921,407.77/65,138.04
  6. Step 6: Final answer
    x = 27,586.36

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1.5x scale

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.