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Finding the Fourth Proportional to 56,417.72, 77,865.03 and 36,008.60

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Solution

The fourth proportional to 56,417.72, 77,865.03 and 36,008.60 is: 49,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,417.72 : 77,865.03 = 36,008.60 : x
  2. Step 2: Convert to fraction form
    56,417.72/77,865.03 = 36,008.60/x
  3. Step 3: Cross multiply
    56,417.72x = 77,865.03 × 36,008.60
  4. Step 4: Simplify right side
    56,417.72x = 2,803,810,329.93
  5. Step 5: Solve for x
    x = 2,803,810,329.93/56,417.72
  6. Step 6: Final answer
    x = 49,697.34

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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.