Home / 70,430.12-105,639.96-26,036.12

Finding the Fourth Proportional to 70,430.12, 105,639.96 and 26,036.12

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Solution

The fourth proportional to 70,430.12, 105,639.96 and 26,036.12 is: 39,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,430.12 : 105,639.96 = 26,036.12 : x
  2. Step 2: Convert to fraction form
    70,430.12/105,639.96 = 26,036.12/x
  3. Step 3: Cross multiply
    70,430.12x = 105,639.96 × 26,036.12
  4. Step 4: Simplify right side
    70,430.12x = 2,750,454,675.36
  5. Step 5: Solve for x
    x = 2,750,454,675.36/70,430.12
  6. Step 6: Final answer
    x = 39,052.25

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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.