Home / 56,139.20-77,445.70-33,465.28

Finding the Fourth Proportional to 56,139.20, 77,445.70 and 33,465.28

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Solution

The fourth proportional to 56,139.20, 77,445.70 and 33,465.28 is: 46,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,139.20 : 77,445.70 = 33,465.28 : x
  2. Step 2: Convert to fraction form
    56,139.20/77,445.70 = 33,465.28/x
  3. Step 3: Cross multiply
    56,139.20x = 77,445.70 × 33,465.28
  4. Step 4: Simplify right side
    56,139.20x = 2,591,742,035.30
  5. Step 5: Solve for x
    x = 2,591,742,035.30/56,139.20
  6. Step 6: Final answer
    x = 46,166.35

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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.