Home / 87,075.07-130,605.08-61,669.55

Finding the Fourth Proportional to 87,075.07, 130,605.08 and 61,669.55

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Solution

The fourth proportional to 87,075.07, 130,605.08 and 61,669.55 is: 92,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,075.07 : 130,605.08 = 61,669.55 : x
  2. Step 2: Convert to fraction form
    87,075.07/130,605.08 = 61,669.55/x
  3. Step 3: Cross multiply
    87,075.07x = 130,605.08 × 61,669.55
  4. Step 4: Simplify right side
    87,075.07x = 8,054,356,529.48
  5. Step 5: Solve for x
    x = 8,054,356,529.48/87,075.07
  6. Step 6: Final answer
    x = 92,499.00

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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.