Home / 42,900.40-64,350.65-11,735.65

Finding the Fourth Proportional to 42,900.40, 64,350.65 and 11,735.65

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Solution

The fourth proportional to 42,900.40, 64,350.65 and 11,735.65 is: 17,603.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,900.40 : 64,350.65 = 11,735.65 : x
  2. Step 2: Convert to fraction form
    42,900.40/64,350.65 = 11,735.65/x
  3. Step 3: Cross multiply
    42,900.40x = 64,350.65 × 11,735.65
  4. Step 4: Simplify right side
    42,900.40x = 755,196,705.67
  5. Step 5: Solve for x
    x = 755,196,705.67/42,900.40
  6. Step 6: Final answer
    x = 17,603.49

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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.