Home / 56,419.24-77,858.10-30,925.70

Finding the Fourth Proportional to 56,419.24, 77,858.10 and 30,925.70

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Solution

The fourth proportional to 56,419.24, 77,858.10 and 30,925.70 is: 42,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,419.24 : 77,858.10 = 30,925.70 : x
  2. Step 2: Convert to fraction form
    56,419.24/77,858.10 = 30,925.70/x
  3. Step 3: Cross multiply
    56,419.24x = 77,858.10 × 30,925.70
  4. Step 4: Simplify right side
    56,419.24x = 2,407,816,243.17
  5. Step 5: Solve for x
    x = 2,407,816,243.17/56,419.24
  6. Step 6: Final answer
    x = 42,677.22

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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.