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Finding the Fourth Proportional to 64,000.12, 88,320.42 and 35,707

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Solution

The fourth proportional to 64,000.12, 88,320.42 and 35,707 is: 49,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,000.12 : 88,320.42 = 35,707 : x
  2. Step 2: Convert to fraction form
    64,000.12/88,320.42 = 35,707/x
  3. Step 3: Cross multiply
    64,000.12x = 88,320.42 × 35,707
  4. Step 4: Simplify right side
    64,000.12x = 3,153,657,236.94
  5. Step 5: Solve for x
    x = 3,153,657,236.94/64,000.12
  6. Step 6: Final answer
    x = 49,275.80

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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.