Home / 56,465.28-77,925.60-31,317.12

Finding the Fourth Proportional to 56,465.28, 77,925.60 and 31,317.12

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Solution

The fourth proportional to 56,465.28, 77,925.60 and 31,317.12 is: 43,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,465.28 : 77,925.60 = 31,317.12 : x
  2. Step 2: Convert to fraction form
    56,465.28/77,925.60 = 31,317.12/x
  3. Step 3: Cross multiply
    56,465.28x = 77,925.60 × 31,317.12
  4. Step 4: Simplify right side
    56,465.28x = 2,440,405,366.27
  5. Step 5: Solve for x
    x = 2,440,405,366.27/56,465.28
  6. Step 6: Final answer
    x = 43,219.57

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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.