Home / 56,483.18-77,947.58-30,989.08

Finding the Fourth Proportional to 56,483.18, 77,947.58 and 30,989.08

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Solution

The fourth proportional to 56,483.18, 77,947.58 and 30,989.08 is: 42,765.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,483.18 : 77,947.58 = 30,989.08 : x
  2. Step 2: Convert to fraction form
    56,483.18/77,947.58 = 30,989.08/x
  3. Step 3: Cross multiply
    56,483.18x = 77,947.58 × 30,989.08
  4. Step 4: Simplify right side
    56,483.18x = 2,415,523,967.33
  5. Step 5: Solve for x
    x = 2,415,523,967.33/56,483.18
  6. Step 6: Final answer
    x = 42,765.37

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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.