Home / 70,869.47-97,799.87-39,038.38

Finding the Fourth Proportional to 70,869.47, 97,799.87 and 39,038.38

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Solution

The fourth proportional to 70,869.47, 97,799.87 and 39,038.38 is: 53,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,869.47 : 97,799.87 = 39,038.38 : x
  2. Step 2: Convert to fraction form
    70,869.47/97,799.87 = 39,038.38/x
  3. Step 3: Cross multiply
    70,869.47x = 97,799.87 × 39,038.38
  4. Step 4: Simplify right side
    70,869.47x = 3,817,948,342.11
  5. Step 5: Solve for x
    x = 3,817,948,342.11/70,869.47
  6. Step 6: Final answer
    x = 53,872.97

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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.