Home / 73,985.50-102,075.88-45,275.20

Finding the Fourth Proportional to 73,985.50, 102,075.88 and 45,275.20

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Solution

The fourth proportional to 73,985.50, 102,075.88 and 45,275.20 is: 62,465.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,985.50 : 102,075.88 = 45,275.20 : x
  2. Step 2: Convert to fraction form
    73,985.50/102,075.88 = 45,275.20/x
  3. Step 3: Cross multiply
    73,985.50x = 102,075.88 × 45,275.20
  4. Step 4: Simplify right side
    73,985.50x = 4,621,505,145.42
  5. Step 5: Solve for x
    x = 4,621,505,145.42/73,985.50
  6. Step 6: Final answer
    x = 62,465.02

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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.