Home / 76,735.40-105,911.18-51,570.32

Finding the Fourth Proportional to 76,735.40, 105,911.18 and 51,570.32

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Solution

The fourth proportional to 76,735.40, 105,911.18 and 51,570.32 is: 71,178.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,735.40 : 105,911.18 = 51,570.32 : x
  2. Step 2: Convert to fraction form
    76,735.40/105,911.18 = 51,570.32/x
  3. Step 3: Cross multiply
    76,735.40x = 105,911.18 × 51,570.32
  4. Step 4: Simplify right side
    76,735.40x = 5,461,873,444.18
  5. Step 5: Solve for x
    x = 5,461,873,444.18/76,735.40
  6. Step 6: Final answer
    x = 71,178.01

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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.