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Finding the Fourth Proportional to 64,804.07, 89,433.74 and 48,860.39

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Solution

The fourth proportional to 64,804.07, 89,433.74 and 48,860.39 is: 67,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,804.07 : 89,433.74 = 48,860.39 : x
  2. Step 2: Convert to fraction form
    64,804.07/89,433.74 = 48,860.39/x
  3. Step 3: Cross multiply
    64,804.07x = 89,433.74 × 48,860.39
  4. Step 4: Simplify right side
    64,804.07x = 4,369,767,415.56
  5. Step 5: Solve for x
    x = 4,369,767,415.56/64,804.07
  6. Step 6: Final answer
    x = 67,430.45

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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.