Home / 51,435.81-77,159.88-18,149.00

Finding the Fourth Proportional to 51,435.81, 77,159.88 and 18,149.00

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Solution

The fourth proportional to 51,435.81, 77,159.88 and 18,149.00 is: 27,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,435.81 : 77,159.88 = 18,149.00 : x
  2. Step 2: Convert to fraction form
    51,435.81/77,159.88 = 18,149.00/x
  3. Step 3: Cross multiply
    51,435.81x = 77,159.88 × 18,149.00
  4. Step 4: Simplify right side
    51,435.81x = 1,400,374,276.32
  5. Step 5: Solve for x
    x = 1,400,374,276.32/51,435.81
  6. Step 6: Final answer
    x = 27,225.67

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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.