Home / 66,666.08-91,925.88-42,783.68

Finding the Fourth Proportional to 66,666.08, 91,925.88 and 42,783.68

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Solution

The fourth proportional to 66,666.08, 91,925.88 and 42,783.68 is: 58,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,666.08 : 91,925.88 = 42,783.68 : x
  2. Step 2: Convert to fraction form
    66,666.08/91,925.88 = 42,783.68/x
  3. Step 3: Cross multiply
    66,666.08x = 91,925.88 × 42,783.68
  4. Step 4: Simplify right side
    66,666.08x = 3,932,927,433.64
  5. Step 5: Solve for x
    x = 3,932,927,433.64/66,666.08
  6. Step 6: Final answer
    x = 58,994.43

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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.