Home / 66,332.01-91,599-42,140.79

Finding the Fourth Proportional to 66,332.01, 91,599 and 42,140.79

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Solution

The fourth proportional to 66,332.01, 91,599 and 42,140.79 is: 58,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,332.01 : 91,599 = 42,140.79 : x
  2. Step 2: Convert to fraction form
    66,332.01/91,599 = 42,140.79/x
  3. Step 3: Cross multiply
    66,332.01x = 91,599 × 42,140.79
  4. Step 4: Simplify right side
    66,332.01x = 3,860,054,223.21
  5. Step 5: Solve for x
    x = 3,860,054,223.21/66,332.01
  6. Step 6: Final answer
    x = 58,192.93

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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.