Home / 72,621.98-99,986.65-61,263.25

Finding the Fourth Proportional to 72,621.98, 99,986.65 and 61,263.25

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Solution

The fourth proportional to 72,621.98, 99,986.65 and 61,263.25 is: 84,347.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621.98 : 99,986.65 = 61,263.25 : x
  2. Step 2: Convert to fraction form
    72,621.98/99,986.65 = 61,263.25/x
  3. Step 3: Cross multiply
    72,621.98x = 99,986.65 × 61,263.25
  4. Step 4: Simplify right side
    72,621.98x = 6,125,507,639.52
  5. Step 5: Solve for x
    x = 6,125,507,639.52/72,621.98
  6. Step 6: Final answer
    x = 84,347.84

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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.