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Finding the Fourth Proportional to 60,271.70, 90,407.55 and 57,712.10

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Solution

The fourth proportional to 60,271.70, 90,407.55 and 57,712.10 is: 86,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,271.70 : 90,407.55 = 57,712.10 : x
  2. Step 2: Convert to fraction form
    60,271.70/90,407.55 = 57,712.10/x
  3. Step 3: Cross multiply
    60,271.70x = 90,407.55 × 57,712.10
  4. Step 4: Simplify right side
    60,271.70x = 5,217,609,566.36
  5. Step 5: Solve for x
    x = 5,217,609,566.36/60,271.70
  6. Step 6: Final answer
    x = 86,568.15

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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.