Home / 56,433.10-77,875.99-30,938.60

Finding the Fourth Proportional to 56,433.10, 77,875.99 and 30,938.60

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Solution

The fourth proportional to 56,433.10, 77,875.99 and 30,938.60 is: 42,694.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.10 : 77,875.99 = 30,938.60 : x
  2. Step 2: Convert to fraction form
    56,433.10/77,875.99 = 30,938.60/x
  3. Step 3: Cross multiply
    56,433.10x = 77,875.99 × 30,938.60
  4. Step 4: Simplify right side
    56,433.10x = 2,409,374,104.21
  5. Step 5: Solve for x
    x = 2,409,374,104.21/56,433.10
  6. Step 6: Final answer
    x = 42,694.34

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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.