Home / 74,543.07-102,868.59-55,507.98

Finding the Fourth Proportional to 74,543.07, 102,868.59 and 55,507.98

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Solution

The fourth proportional to 74,543.07, 102,868.59 and 55,507.98 is: 76,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,543.07 : 102,868.59 = 55,507.98 : x
  2. Step 2: Convert to fraction form
    74,543.07/102,868.59 = 55,507.98/x
  3. Step 3: Cross multiply
    74,543.07x = 102,868.59 × 55,507.98
  4. Step 4: Simplify right side
    74,543.07x = 5,710,027,042.44
  5. Step 5: Solve for x
    x = 5,710,027,042.44/74,543.07
  6. Step 6: Final answer
    x = 76,600.38

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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.