Home / 42,712.96-64,075.58-13,133.28

Finding the Fourth Proportional to 42,712.96, 64,075.58 and 13,133.28

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Solution

The fourth proportional to 42,712.96, 64,075.58 and 13,133.28 is: 19,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,712.96 : 64,075.58 = 13,133.28 : x
  2. Step 2: Convert to fraction form
    42,712.96/64,075.58 = 13,133.28/x
  3. Step 3: Cross multiply
    42,712.96x = 64,075.58 × 13,133.28
  4. Step 4: Simplify right side
    42,712.96x = 841,522,533.30
  5. Step 5: Solve for x
    x = 841,522,533.30/42,712.96
  6. Step 6: Final answer
    x = 19,701.81

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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.