Home / 51,386.74-77,071.01-13,949.72

Finding the Fourth Proportional to 51,386.74, 77,071.01 and 13,949.72

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Solution

The fourth proportional to 51,386.74, 77,071.01 and 13,949.72 is: 20,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.74 : 77,071.01 = 13,949.72 : x
  2. Step 2: Convert to fraction form
    51,386.74/77,071.01 = 13,949.72/x
  3. Step 3: Cross multiply
    51,386.74x = 77,071.01 × 13,949.72
  4. Step 4: Simplify right side
    51,386.74x = 1,075,119,009.62
  5. Step 5: Solve for x
    x = 1,075,119,009.62/51,386.74
  6. Step 6: Final answer
    x = 20,922.11

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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.