Home / 42,707.55-64,061.55-28,009.54

Finding the Fourth Proportional to 42,707.55, 64,061.55 and 28,009.54

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Solution

The fourth proportional to 42,707.55, 64,061.55 and 28,009.54 is: 42,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,707.55 : 64,061.55 = 28,009.54 : x
  2. Step 2: Convert to fraction form
    42,707.55/64,061.55 = 28,009.54/x
  3. Step 3: Cross multiply
    42,707.55x = 64,061.55 × 28,009.54
  4. Step 4: Simplify right side
    42,707.55x = 1,794,334,777.36
  5. Step 5: Solve for x
    x = 1,794,334,777.36/42,707.55
  6. Step 6: Final answer
    x = 42,014.46

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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.