Home / 74,075.04-102,142.08-47,187.36

Finding the Fourth Proportional to 74,075.04, 102,142.08 and 47,187.36

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Solution

The fourth proportional to 74,075.04, 102,142.08 and 47,187.36 is: 65,066.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,075.04 : 102,142.08 = 47,187.36 : x
  2. Step 2: Convert to fraction form
    74,075.04/102,142.08 = 47,187.36/x
  3. Step 3: Cross multiply
    74,075.04x = 102,142.08 × 47,187.36
  4. Step 4: Simplify right side
    74,075.04x = 4,819,815,100.11
  5. Step 5: Solve for x
    x = 4,819,815,100.11/74,075.04
  6. Step 6: Final answer
    x = 65,066.66

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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.