Home / 56,055.36-77,356.92-30,905.76

Finding the Fourth Proportional to 56,055.36, 77,356.92 and 30,905.76

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Solution

The fourth proportional to 56,055.36, 77,356.92 and 30,905.76 is: 42,650.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,055.36 : 77,356.92 = 30,905.76 : x
  2. Step 2: Convert to fraction form
    56,055.36/77,356.92 = 30,905.76/x
  3. Step 3: Cross multiply
    56,055.36x = 77,356.92 × 30,905.76
  4. Step 4: Simplify right side
    56,055.36x = 2,390,774,403.86
  5. Step 5: Solve for x
    x = 2,390,774,403.86/56,055.36
  6. Step 6: Final answer
    x = 42,650.24

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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.