Home / 64,485.12-88,990.32-48,323.70

Finding the Fourth Proportional to 64,485.12, 88,990.32 and 48,323.70

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Solution

The fourth proportional to 64,485.12, 88,990.32 and 48,323.70 is: 66,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,485.12 : 88,990.32 = 48,323.70 : x
  2. Step 2: Convert to fraction form
    64,485.12/88,990.32 = 48,323.70/x
  3. Step 3: Cross multiply
    64,485.12x = 88,990.32 × 48,323.70
  4. Step 4: Simplify right side
    64,485.12x = 4,300,341,526.58
  5. Step 5: Solve for x
    x = 4,300,341,526.58/64,485.12
  6. Step 6: Final answer
    x = 66,687.35

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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.