Home / 56,632.31-78,154.60-31,140.62

Finding the Fourth Proportional to 56,632.31, 78,154.60 and 31,140.62

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Solution

The fourth proportional to 56,632.31, 78,154.60 and 31,140.62 is: 42,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,632.31 : 78,154.60 = 31,140.62 : x
  2. Step 2: Convert to fraction form
    56,632.31/78,154.60 = 31,140.62/x
  3. Step 3: Cross multiply
    56,632.31x = 78,154.60 × 31,140.62
  4. Step 4: Simplify right side
    56,632.31x = 2,433,782,153.38
  5. Step 5: Solve for x
    x = 2,433,782,153.38/56,632.31
  6. Step 6: Final answer
    x = 42,975.15

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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.