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Finding the Fourth Proportional to 70,024.58, 105,041.65 and 20,100.84

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Solution

The fourth proportional to 70,024.58, 105,041.65 and 20,100.84 is: 30,152.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,024.58 : 105,041.65 = 20,100.84 : x
  2. Step 2: Convert to fraction form
    70,024.58/105,041.65 = 20,100.84/x
  3. Step 3: Cross multiply
    70,024.58x = 105,041.65 × 20,100.84
  4. Step 4: Simplify right side
    70,024.58x = 2,111,424,925.03
  5. Step 5: Solve for x
    x = 2,111,424,925.03/70,024.58
  6. Step 6: Final answer
    x = 30,152.63

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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.