Home / 56,509.25-78,013.62-38,630.53

Finding the Fourth Proportional to 56,509.25, 78,013.62 and 38,630.53

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Solution

The fourth proportional to 56,509.25, 78,013.62 and 38,630.53 is: 53,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,509.25 : 78,013.62 = 38,630.53 : x
  2. Step 2: Convert to fraction form
    56,509.25/78,013.62 = 38,630.53/x
  3. Step 3: Cross multiply
    56,509.25x = 78,013.62 × 38,630.53
  4. Step 4: Simplify right side
    56,509.25x = 3,013,707,487.82
  5. Step 5: Solve for x
    x = 3,013,707,487.82/56,509.25
  6. Step 6: Final answer
    x = 53,331.22

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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.