Home / 42,975.59-64,462.04-11,810.57

Finding the Fourth Proportional to 42,975.59, 64,462.04 and 11,810.57

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Solution

The fourth proportional to 42,975.59, 64,462.04 and 11,810.57 is: 17,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,975.59 : 64,462.04 = 11,810.57 : x
  2. Step 2: Convert to fraction form
    42,975.59/64,462.04 = 11,810.57/x
  3. Step 3: Cross multiply
    42,975.59x = 64,462.04 × 11,810.57
  4. Step 4: Simplify right side
    42,975.59x = 761,333,376.71
  5. Step 5: Solve for x
    x = 761,333,376.71/42,975.59
  6. Step 6: Final answer
    x = 17,715.48

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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.