Home / 74,109.54-102,261.56-42,276.54

Finding the Fourth Proportional to 74,109.54, 102,261.56 and 42,276.54

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Solution

The fourth proportional to 74,109.54, 102,261.56 and 42,276.54 is: 58,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.54 : 102,261.56 = 42,276.54 : x
  2. Step 2: Convert to fraction form
    74,109.54/102,261.56 = 42,276.54/x
  3. Step 3: Cross multiply
    74,109.54x = 102,261.56 × 42,276.54
  4. Step 4: Simplify right side
    74,109.54x = 4,323,264,931.80
  5. Step 5: Solve for x
    x = 4,323,264,931.80/74,109.54
  6. Step 6: Final answer
    x = 58,336.15

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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.