Home / 60,312.08-90,347.16-30,728.72

Finding the Fourth Proportional to 60,312.08, 90,347.16 and 30,728.72

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Solution

The fourth proportional to 60,312.08, 90,347.16 and 30,728.72 is: 46,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,312.08 : 90,347.16 = 30,728.72 : x
  2. Step 2: Convert to fraction form
    60,312.08/90,347.16 = 30,728.72/x
  3. Step 3: Cross multiply
    60,312.08x = 90,347.16 × 30,728.72
  4. Step 4: Simplify right side
    60,312.08x = 2,776,252,582.44
  5. Step 5: Solve for x
    x = 2,776,252,582.44/60,312.08
  6. Step 6: Final answer
    x = 46,031.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.