Home / 57,445.75-86,168.08-31,316.50

Finding the Fourth Proportional to 57,445.75, 86,168.08 and 31,316.50

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Solution

The fourth proportional to 57,445.75, 86,168.08 and 31,316.50 is: 46,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,445.75 : 86,168.08 = 31,316.50 : x
  2. Step 2: Convert to fraction form
    57,445.75/86,168.08 = 31,316.50/x
  3. Step 3: Cross multiply
    57,445.75x = 86,168.08 × 31,316.50
  4. Step 4: Simplify right side
    57,445.75x = 2,698,482,677.32
  5. Step 5: Solve for x
    x = 2,698,482,677.32/57,445.75
  6. Step 6: Final answer
    x = 46,974.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.