Home / 61,074.38-91,607.16-18,953.36

Finding the Fourth Proportional to 61,074.38, 91,607.16 and 18,953.36

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Solution

The fourth proportional to 61,074.38, 91,607.16 and 18,953.36 is: 28,428.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,074.38 : 91,607.16 = 18,953.36 : x
  2. Step 2: Convert to fraction form
    61,074.38/91,607.16 = 18,953.36/x
  3. Step 3: Cross multiply
    61,074.38x = 91,607.16 × 18,953.36
  4. Step 4: Simplify right side
    61,074.38x = 1,736,263,482.06
  5. Step 5: Solve for x
    x = 1,736,263,482.06/61,074.38
  6. Step 6: Final answer
    x = 28,428.67

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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.