Home / 61,678.12-85,108.10-34,817.32

Finding the Fourth Proportional to 61,678.12, 85,108.10 and 34,817.32

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Solution

The fourth proportional to 61,678.12, 85,108.10 and 34,817.32 is: 48,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,678.12 : 85,108.10 = 34,817.32 : x
  2. Step 2: Convert to fraction form
    61,678.12/85,108.10 = 34,817.32/x
  3. Step 3: Cross multiply
    61,678.12x = 85,108.10 × 34,817.32
  4. Step 4: Simplify right side
    61,678.12x = 2,963,235,952.29
  5. Step 5: Solve for x
    x = 2,963,235,952.29/61,678.12
  6. Step 6: Final answer
    x = 48,043.55

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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.