Home / 74,787.08-103,211.70-42,957.32

Finding the Fourth Proportional to 74,787.08, 103,211.70 and 42,957.32

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Solution

The fourth proportional to 74,787.08, 103,211.70 and 42,957.32 is: 59,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,787.08 : 103,211.70 = 42,957.32 : x
  2. Step 2: Convert to fraction form
    74,787.08/103,211.70 = 42,957.32/x
  3. Step 3: Cross multiply
    74,787.08x = 103,211.70 × 42,957.32
  4. Step 4: Simplify right side
    74,787.08x = 4,433,698,024.64
  5. Step 5: Solve for x
    x = 4,433,698,024.64/74,787.08
  6. Step 6: Final answer
    x = 59,284.28

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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.