Home / 70,276.07-96,981.21-38,445.21

Finding the Fourth Proportional to 70,276.07, 96,981.21 and 38,445.21

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Solution

The fourth proportional to 70,276.07, 96,981.21 and 38,445.21 is: 53,054.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,276.07 : 96,981.21 = 38,445.21 : x
  2. Step 2: Convert to fraction form
    70,276.07/96,981.21 = 38,445.21/x
  3. Step 3: Cross multiply
    70,276.07x = 96,981.21 × 38,445.21
  4. Step 4: Simplify right side
    70,276.07x = 3,728,462,984.50
  5. Step 5: Solve for x
    x = 3,728,462,984.50/70,276.07
  6. Step 6: Final answer
    x = 53,054.52

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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.