Home / 45,813.39-63,231.72-31,316.32

Finding the Fourth Proportional to 45,813.39, 63,231.72 and 31,316.32

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Solution

The fourth proportional to 45,813.39, 63,231.72 and 31,316.32 is: 43,222.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,813.39 : 63,231.72 = 31,316.32 : x
  2. Step 2: Convert to fraction form
    45,813.39/63,231.72 = 31,316.32/x
  3. Step 3: Cross multiply
    45,813.39x = 63,231.72 × 31,316.32
  4. Step 4: Simplify right side
    45,813.39x = 1,980,184,461.51
  5. Step 5: Solve for x
    x = 1,980,184,461.51/45,813.39
  6. Step 6: Final answer
    x = 43,222.83

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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.