Home / 97,430.03-134,455.10-57,144.88

Finding the Fourth Proportional to 97,430.03, 134,455.10 and 57,144.88

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Solution

The fourth proportional to 97,430.03, 134,455.10 and 57,144.88 is: 78,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,430.03 : 134,455.10 = 57,144.88 : x
  2. Step 2: Convert to fraction form
    97,430.03/134,455.10 = 57,144.88/x
  3. Step 3: Cross multiply
    97,430.03x = 134,455.10 × 57,144.88
  4. Step 4: Simplify right side
    97,430.03x = 7,683,420,554.89
  5. Step 5: Solve for x
    x = 7,683,420,554.89/97,430.03
  6. Step 6: Final answer
    x = 78,860.91

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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.