Home / 85,071.79-127,545.04-28,896.76

Finding the Fourth Proportional to 85,071.79, 127,545.04 and 28,896.76

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Solution

The fourth proportional to 85,071.79, 127,545.04 and 28,896.76 is: 43,323.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071.79 : 127,545.04 = 28,896.76 : x
  2. Step 2: Convert to fraction form
    85,071.79/127,545.04 = 28,896.76/x
  3. Step 3: Cross multiply
    85,071.79x = 127,545.04 × 28,896.76
  4. Step 4: Simplify right side
    85,071.79x = 3,685,638,410.07
  5. Step 5: Solve for x
    x = 3,685,638,410.07/85,071.79
  6. Step 6: Final answer
    x = 43,323.86

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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.