Home / 70,901.36-97,845-39,070.16

Finding the Fourth Proportional to 70,901.36, 97,845 and 39,070.16

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Solution

The fourth proportional to 70,901.36, 97,845 and 39,070.16 is: 53,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.36 : 97,845 = 39,070.16 : x
  2. Step 2: Convert to fraction form
    70,901.36/97,845 = 39,070.16/x
  3. Step 3: Cross multiply
    70,901.36x = 97,845 × 39,070.16
  4. Step 4: Simplify right side
    70,901.36x = 3,822,819,805.20
  5. Step 5: Solve for x
    x = 3,822,819,805.20/70,901.36
  6. Step 6: Final answer
    x = 53,917.44

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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.