Home / 60,421.12-83,347.56-56,144.70

Finding the Fourth Proportional to 60,421.12, 83,347.56 and 56,144.70

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Solution

The fourth proportional to 60,421.12, 83,347.56 and 56,144.70 is: 77,448.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,421.12 : 83,347.56 = 56,144.70 : x
  2. Step 2: Convert to fraction form
    60,421.12/83,347.56 = 56,144.70/x
  3. Step 3: Cross multiply
    60,421.12x = 83,347.56 × 56,144.70
  4. Step 4: Simplify right side
    60,421.12x = 4,679,523,751.93
  5. Step 5: Solve for x
    x = 4,679,523,751.93/60,421.12
  6. Step 6: Final answer
    x = 77,448.48

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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.