Home / 77,130.32-115,666.28-42,050.88

Finding the Fourth Proportional to 77,130.32, 115,666.28 and 42,050.88

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Solution

The fourth proportional to 77,130.32, 115,666.28 and 42,050.88 is: 63,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,130.32 : 115,666.28 = 42,050.88 : x
  2. Step 2: Convert to fraction form
    77,130.32/115,666.28 = 42,050.88/x
  3. Step 3: Cross multiply
    77,130.32x = 115,666.28 × 42,050.88
  4. Step 4: Simplify right side
    77,130.32x = 4,863,868,860.33
  5. Step 5: Solve for x
    x = 4,863,868,860.33/77,130.32
  6. Step 6: Final answer
    x = 63,060.40

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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.