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Finding the Fourth Proportional to 64,875.58, 89,530.95 and 40,993.54

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Solution

The fourth proportional to 64,875.58, 89,530.95 and 40,993.54 is: 56,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,875.58 : 89,530.95 = 40,993.54 : x
  2. Step 2: Convert to fraction form
    64,875.58/89,530.95 = 40,993.54/x
  3. Step 3: Cross multiply
    64,875.58x = 89,530.95 × 40,993.54
  4. Step 4: Simplify right side
    64,875.58x = 3,670,190,509.96
  5. Step 5: Solve for x
    x = 3,670,190,509.96/64,875.58
  6. Step 6: Final answer
    x = 56,572.76

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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.