Home / 51,307.20-77,009.40-31,624.20

Finding the Fourth Proportional to 51,307.20, 77,009.40 and 31,624.20

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Solution

The fourth proportional to 51,307.20, 77,009.40 and 31,624.20 is: 47,466.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,307.20 : 77,009.40 = 31,624.20 : x
  2. Step 2: Convert to fraction form
    51,307.20/77,009.40 = 31,624.20/x
  3. Step 3: Cross multiply
    51,307.20x = 77,009.40 × 31,624.20
  4. Step 4: Simplify right side
    51,307.20x = 2,435,360,667.48
  5. Step 5: Solve for x
    x = 2,435,360,667.48/51,307.20
  6. Step 6: Final answer
    x = 47,466.26

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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.