Home / 70,400.13-97,152.17-42,112.50

Finding the Fourth Proportional to 70,400.13, 97,152.17 and 42,112.50

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Solution

The fourth proportional to 70,400.13, 97,152.17 and 42,112.50 is: 58,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.13 : 97,152.17 = 42,112.50 : x
  2. Step 2: Convert to fraction form
    70,400.13/97,152.17 = 42,112.50/x
  3. Step 3: Cross multiply
    70,400.13x = 97,152.17 × 42,112.50
  4. Step 4: Simplify right side
    70,400.13x = 4,091,320,759.13
  5. Step 5: Solve for x
    x = 4,091,320,759.13/70,400.13
  6. Step 6: Final answer
    x = 58,115.24

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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.