Home / 74,420.48-102,699.52-40,885.76

Finding the Fourth Proportional to 74,420.48, 102,699.52 and 40,885.76

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Solution

The fourth proportional to 74,420.48, 102,699.52 and 40,885.76 is: 56,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.48 : 102,699.52 = 40,885.76 : x
  2. Step 2: Convert to fraction form
    74,420.48/102,699.52 = 40,885.76/x
  3. Step 3: Cross multiply
    74,420.48x = 102,699.52 × 40,885.76
  4. Step 4: Simplify right side
    74,420.48x = 4,198,947,926.84
  5. Step 5: Solve for x
    x = 4,198,947,926.84/74,420.48
  6. Step 6: Final answer
    x = 56,421.94

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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.