Home / 64,987.12-97,438.65-42,733.09

Finding the Fourth Proportional to 64,987.12, 97,438.65 and 42,733.09

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Solution

The fourth proportional to 64,987.12, 97,438.65 and 42,733.09 is: 64,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,987.12 : 97,438.65 = 42,733.09 : x
  2. Step 2: Convert to fraction form
    64,987.12/97,438.65 = 42,733.09/x
  3. Step 3: Cross multiply
    64,987.12x = 97,438.65 × 42,733.09
  4. Step 4: Simplify right side
    64,987.12x = 4,163,854,599.93
  5. Step 5: Solve for x
    x = 4,163,854,599.93/64,987.12
  6. Step 6: Final answer
    x = 64,072.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.