Home / 70,941.08-97,898.70-39,109.64

Finding the Fourth Proportional to 70,941.08, 97,898.70 and 39,109.64

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Solution

The fourth proportional to 70,941.08, 97,898.70 and 39,109.64 is: 53,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,941.08 : 97,898.70 = 39,109.64 : x
  2. Step 2: Convert to fraction form
    70,941.08/97,898.70 = 39,109.64/x
  3. Step 3: Cross multiply
    70,941.08x = 97,898.70 × 39,109.64
  4. Step 4: Simplify right side
    70,941.08x = 3,828,782,913.47
  5. Step 5: Solve for x
    x = 3,828,782,913.47/70,941.08
  6. Step 6: Final answer
    x = 53,971.31

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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.