Home / 70,830.05-97,746.14-39,000.08

Finding the Fourth Proportional to 70,830.05, 97,746.14 and 39,000.08

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Solution

The fourth proportional to 70,830.05, 97,746.14 and 39,000.08 is: 53,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,830.05 : 97,746.14 = 39,000.08 : x
  2. Step 2: Convert to fraction form
    70,830.05/97,746.14 = 39,000.08/x
  3. Step 3: Cross multiply
    70,830.05x = 97,746.14 × 39,000.08
  4. Step 4: Simplify right side
    70,830.05x = 3,812,107,621.56
  5. Step 5: Solve for x
    x = 3,812,107,621.56/70,830.05
  6. Step 6: Final answer
    x = 53,820.49

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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.