Home / 65,130.40-97,501.20-38,821.60

Finding the Fourth Proportional to 65,130.40, 97,501.20 and 38,821.60

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Solution

The fourth proportional to 65,130.40, 97,501.20 and 38,821.60 is: 58,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,130.40 : 97,501.20 = 38,821.60 : x
  2. Step 2: Convert to fraction form
    65,130.40/97,501.20 = 38,821.60/x
  3. Step 3: Cross multiply
    65,130.40x = 97,501.20 × 38,821.60
  4. Step 4: Simplify right side
    65,130.40x = 3,785,152,585.92
  5. Step 5: Solve for x
    x = 3,785,152,585.92/65,130.40
  6. Step 6: Final answer
    x = 58,116.53

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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.