Home / 42,685.42-64,168.36-39,602.68

Finding the Fourth Proportional to 42,685.42, 64,168.36 and 39,602.68

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Solution

The fourth proportional to 42,685.42, 64,168.36 and 39,602.68 is: 59,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,685.42 : 64,168.36 = 39,602.68 : x
  2. Step 2: Convert to fraction form
    42,685.42/64,168.36 = 39,602.68/x
  3. Step 3: Cross multiply
    42,685.42x = 64,168.36 × 39,602.68
  4. Step 4: Simplify right side
    42,685.42x = 2,541,239,027.20
  5. Step 5: Solve for x
    x = 2,541,239,027.20/42,685.42
  6. Step 6: Final answer
    x = 59,534.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.