Home / 45,656.90-68,484.13-20,678.93

Finding the Fourth Proportional to 45,656.90, 68,484.13 and 20,678.93

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Solution

The fourth proportional to 45,656.90, 68,484.13 and 20,678.93 is: 31,017.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,656.90 : 68,484.13 = 20,678.93 : x
  2. Step 2: Convert to fraction form
    45,656.90/68,484.13 = 20,678.93/x
  3. Step 3: Cross multiply
    45,656.90x = 68,484.13 × 20,678.93
  4. Step 4: Simplify right side
    45,656.90x = 1,416,178,530.38
  5. Step 5: Solve for x
    x = 1,416,178,530.38/45,656.90
  6. Step 6: Final answer
    x = 31,017.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.