Home / 65,078.12-97,653.93-30,017.78

Finding the Fourth Proportional to 65,078.12, 97,653.93 and 30,017.78

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Solution

The fourth proportional to 65,078.12, 97,653.93 and 30,017.78 is: 45,043.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,078.12 : 97,653.93 = 30,017.78 : x
  2. Step 2: Convert to fraction form
    65,078.12/97,653.93 = 30,017.78/x
  3. Step 3: Cross multiply
    65,078.12x = 97,653.93 × 30,017.78
  4. Step 4: Simplify right side
    65,078.12x = 2,931,353,698.61
  5. Step 5: Solve for x
    x = 2,931,353,698.61/65,078.12
  6. Step 6: Final answer
    x = 45,043.62

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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.