Home / 74,259.45-102,468.60-42,430.41

Finding the Fourth Proportional to 74,259.45, 102,468.60 and 42,430.41

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Solution

The fourth proportional to 74,259.45, 102,468.60 and 42,430.41 is: 58,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,259.45 : 102,468.60 = 42,430.41 : x
  2. Step 2: Convert to fraction form
    74,259.45/102,468.60 = 42,430.41/x
  3. Step 3: Cross multiply
    74,259.45x = 102,468.60 × 42,430.41
  4. Step 4: Simplify right side
    74,259.45x = 4,347,784,710.13
  5. Step 5: Solve for x
    x = 4,347,784,710.13/74,259.45
  6. Step 6: Final answer
    x = 58,548.57

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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.