Home / 72,068.75-99,426.24-48,157.55

Finding the Fourth Proportional to 72,068.75, 99,426.24 and 48,157.55

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Solution

The fourth proportional to 72,068.75, 99,426.24 and 48,157.55 is: 66,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,068.75 : 99,426.24 = 48,157.55 : x
  2. Step 2: Convert to fraction form
    72,068.75/99,426.24 = 48,157.55/x
  3. Step 3: Cross multiply
    72,068.75x = 99,426.24 × 48,157.55
  4. Step 4: Simplify right side
    72,068.75x = 4,788,124,124.11
  5. Step 5: Solve for x
    x = 4,788,124,124.11/72,068.75
  6. Step 6: Final answer
    x = 66,438.28

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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.