Home / 74,830.23-103,276.08-42,998.45

Finding the Fourth Proportional to 74,830.23, 103,276.08 and 42,998.45

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Solution

The fourth proportional to 74,830.23, 103,276.08 and 42,998.45 is: 59,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,830.23 : 103,276.08 = 42,998.45 : x
  2. Step 2: Convert to fraction form
    74,830.23/103,276.08 = 42,998.45/x
  3. Step 3: Cross multiply
    74,830.23x = 103,276.08 × 42,998.45
  4. Step 4: Simplify right side
    74,830.23x = 4,440,710,845.70
  5. Step 5: Solve for x
    x = 4,440,710,845.70/74,830.23
  6. Step 6: Final answer
    x = 59,343.81

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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.