Home / 77,143.02-106,467.21-43,153.39

Finding the Fourth Proportional to 77,143.02, 106,467.21 and 43,153.39

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Solution

The fourth proportional to 77,143.02, 106,467.21 and 43,153.39 is: 59,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,143.02 : 106,467.21 = 43,153.39 : x
  2. Step 2: Convert to fraction form
    77,143.02/106,467.21 = 43,153.39/x
  3. Step 3: Cross multiply
    77,143.02x = 106,467.21 × 43,153.39
  4. Step 4: Simplify right side
    77,143.02x = 4,594,421,168.43
  5. Step 5: Solve for x
    x = 4,594,421,168.43/77,143.02
  6. Step 6: Final answer
    x = 59,557.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.