Home / 76,146.12-105,056.10-44,308.20

Finding the Fourth Proportional to 76,146.12, 105,056.10 and 44,308.20

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Solution

The fourth proportional to 76,146.12, 105,056.10 and 44,308.20 is: 61,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,146.12 : 105,056.10 = 44,308.20 : x
  2. Step 2: Convert to fraction form
    76,146.12/105,056.10 = 44,308.20/x
  3. Step 3: Cross multiply
    76,146.12x = 105,056.10 × 44,308.20
  4. Step 4: Simplify right side
    76,146.12x = 4,654,846,690.02
  5. Step 5: Solve for x
    x = 4,654,846,690.02/76,146.12
  6. Step 6: Final answer
    x = 61,130.45

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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.