Home / 72,133.72-99,444.18-62,168.20

Finding the Fourth Proportional to 72,133.72, 99,444.18 and 62,168.20

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Solution

The fourth proportional to 72,133.72, 99,444.18 and 62,168.20 is: 85,705.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,133.72 : 99,444.18 = 62,168.20 : x
  2. Step 2: Convert to fraction form
    72,133.72/99,444.18 = 62,168.20/x
  3. Step 3: Cross multiply
    72,133.72x = 99,444.18 × 62,168.20
  4. Step 4: Simplify right side
    72,133.72x = 6,182,265,671.08
  5. Step 5: Solve for x
    x = 6,182,265,671.08/72,133.72
  6. Step 6: Final answer
    x = 85,705.63

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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.