Home / 85,312.07-127,968.08-45,814.85

Finding the Fourth Proportional to 85,312.07, 127,968.08 and 45,814.85

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Solution

The fourth proportional to 85,312.07, 127,968.08 and 45,814.85 is: 68,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,312.07 : 127,968.08 = 45,814.85 : x
  2. Step 2: Convert to fraction form
    85,312.07/127,968.08 = 45,814.85/x
  3. Step 3: Cross multiply
    85,312.07x = 127,968.08 × 45,814.85
  4. Step 4: Simplify right side
    85,312.07x = 5,862,837,521.07
  5. Step 5: Solve for x
    x = 5,862,837,521.07/85,312.07
  6. Step 6: Final answer
    x = 68,722.26

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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.