Home / 77,670.04-106,939.16-70,575.24

Finding the Fourth Proportional to 77,670.04, 106,939.16 and 70,575.24

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Solution

The fourth proportional to 77,670.04, 106,939.16 and 70,575.24 is: 97,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,670.04 : 106,939.16 = 70,575.24 : x
  2. Step 2: Convert to fraction form
    77,670.04/106,939.16 = 70,575.24/x
  3. Step 3: Cross multiply
    77,670.04x = 106,939.16 × 70,575.24
  4. Step 4: Simplify right side
    77,670.04x = 7,547,256,882.40
  5. Step 5: Solve for x
    x = 7,547,256,882.40/77,670.04
  6. Step 6: Final answer
    x = 97,170.76

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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.