Home / 70,728.63-97,603.28-38,897.43

Finding the Fourth Proportional to 70,728.63, 97,603.28 and 38,897.43

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Solution

The fourth proportional to 70,728.63, 97,603.28 and 38,897.43 is: 53,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,728.63 : 97,603.28 = 38,897.43 : x
  2. Step 2: Convert to fraction form
    70,728.63/97,603.28 = 38,897.43/x
  3. Step 3: Cross multiply
    70,728.63x = 97,603.28 × 38,897.43
  4. Step 4: Simplify right side
    70,728.63x = 3,796,516,557.08
  5. Step 5: Solve for x
    x = 3,796,516,557.08/70,728.63
  6. Step 6: Final answer
    x = 53,677.22

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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.