Home / 57,479.04-79,298.55-42,407.89

Finding the Fourth Proportional to 57,479.04, 79,298.55 and 42,407.89

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Solution

The fourth proportional to 57,479.04, 79,298.55 and 42,407.89 is: 58,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,479.04 : 79,298.55 = 42,407.89 : x
  2. Step 2: Convert to fraction form
    57,479.04/79,298.55 = 42,407.89/x
  3. Step 3: Cross multiply
    57,479.04x = 79,298.55 × 42,407.89
  4. Step 4: Simplify right side
    57,479.04x = 3,362,883,987.31
  5. Step 5: Solve for x
    x = 3,362,883,987.31/57,479.04
  6. Step 6: Final answer
    x = 58,506.27

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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.