Home / 70,242.69-105,253.07-57,030.51

Finding the Fourth Proportional to 70,242.69, 105,253.07 and 57,030.51

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Solution

The fourth proportional to 70,242.69, 105,253.07 and 57,030.51 is: 85,455.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,242.69 : 105,253.07 = 57,030.51 : x
  2. Step 2: Convert to fraction form
    70,242.69/105,253.07 = 57,030.51/x
  3. Step 3: Cross multiply
    70,242.69x = 105,253.07 × 57,030.51
  4. Step 4: Simplify right side
    70,242.69x = 6,002,635,976.01
  5. Step 5: Solve for x
    x = 6,002,635,976.01/70,242.69
  6. Step 6: Final answer
    x = 85,455.67

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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.