Home / 77,895.17-107,495.19-42,085.07

Finding the Fourth Proportional to 77,895.17, 107,495.19 and 42,085.07

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Solution

The fourth proportional to 77,895.17, 107,495.19 and 42,085.07 is: 58,077.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,895.17 : 107,495.19 = 42,085.07 : x
  2. Step 2: Convert to fraction form
    77,895.17/107,495.19 = 42,085.07/x
  3. Step 3: Cross multiply
    77,895.17x = 107,495.19 × 42,085.07
  4. Step 4: Simplify right side
    77,895.17x = 4,523,942,595.81
  5. Step 5: Solve for x
    x = 4,523,942,595.81/77,895.17
  6. Step 6: Final answer
    x = 58,077.32

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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.