Home / 72,126.62-99,548.48-47,554.28

Finding the Fourth Proportional to 72,126.62, 99,548.48 and 47,554.28

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Solution

The fourth proportional to 72,126.62, 99,548.48 and 47,554.28 is: 65,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,126.62 : 99,548.48 = 47,554.28 : x
  2. Step 2: Convert to fraction form
    72,126.62/99,548.48 = 47,554.28/x
  3. Step 3: Cross multiply
    72,126.62x = 99,548.48 × 47,554.28
  4. Step 4: Simplify right side
    72,126.62x = 4,733,956,018.45
  5. Step 5: Solve for x
    x = 4,733,956,018.45/72,126.62
  6. Step 6: Final answer
    x = 65,633.97

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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.