Home / 43,113.02-64,647.79-13,121.51

Finding the Fourth Proportional to 43,113.02, 64,647.79 and 13,121.51

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Solution

The fourth proportional to 43,113.02, 64,647.79 and 13,121.51 is: 19,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,113.02 : 64,647.79 = 13,121.51 : x
  2. Step 2: Convert to fraction form
    43,113.02/64,647.79 = 13,121.51/x
  3. Step 3: Cross multiply
    43,113.02x = 64,647.79 × 13,121.51
  4. Step 4: Simplify right side
    43,113.02x = 848,276,299.72
  5. Step 5: Solve for x
    x = 848,276,299.72/43,113.02
  6. Step 6: Final answer
    x = 19,675.64

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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.