Home / 72,298.90-99,637.25-52,121.40

Finding the Fourth Proportional to 72,298.90, 99,637.25 and 52,121.40

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Solution

The fourth proportional to 72,298.90, 99,637.25 and 52,121.40 is: 71,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,298.90 : 99,637.25 = 52,121.40 : x
  2. Step 2: Convert to fraction form
    72,298.90/99,637.25 = 52,121.40/x
  3. Step 3: Cross multiply
    72,298.90x = 99,637.25 × 52,121.40
  4. Step 4: Simplify right side
    72,298.90x = 5,193,232,962.15
  5. Step 5: Solve for x
    x = 5,193,232,962.15/72,298.90
  6. Step 6: Final answer
    x = 71,830.04

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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.