Home / 56,057.76-77,360.72-30,564.32

Finding the Fourth Proportional to 56,057.76, 77,360.72 and 30,564.32

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Solution

The fourth proportional to 56,057.76, 77,360.72 and 30,564.32 is: 42,179.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,057.76 : 77,360.72 = 30,564.32 : x
  2. Step 2: Convert to fraction form
    56,057.76/77,360.72 = 30,564.32/x
  3. Step 3: Cross multiply
    56,057.76x = 77,360.72 × 30,564.32
  4. Step 4: Simplify right side
    56,057.76x = 2,364,477,801.51
  5. Step 5: Solve for x
    x = 2,364,477,801.51/56,057.76
  6. Step 6: Final answer
    x = 42,179.31

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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.