Home / 74,283.12-102,503.52-42,445.44

Finding the Fourth Proportional to 74,283.12, 102,503.52 and 42,445.44

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Solution

The fourth proportional to 74,283.12, 102,503.52 and 42,445.44 is: 58,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,283.12 : 102,503.52 = 42,445.44 : x
  2. Step 2: Convert to fraction form
    74,283.12/102,503.52 = 42,445.44/x
  3. Step 3: Cross multiply
    74,283.12x = 102,503.52 × 42,445.44
  4. Step 4: Simplify right side
    74,283.12x = 4,350,807,007.95
  5. Step 5: Solve for x
    x = 4,350,807,007.95/74,283.12
  6. Step 6: Final answer
    x = 58,570.60

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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.