Home / 56,389.02-77,639.27-47,874.30

Finding the Fourth Proportional to 56,389.02, 77,639.27 and 47,874.30

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Solution

The fourth proportional to 56,389.02, 77,639.27 and 47,874.30 is: 65,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,389.02 : 77,639.27 = 47,874.30 : x
  2. Step 2: Convert to fraction form
    56,389.02/77,639.27 = 47,874.30/x
  3. Step 3: Cross multiply
    56,389.02x = 77,639.27 × 47,874.30
  4. Step 4: Simplify right side
    56,389.02x = 3,716,925,703.76
  5. Step 5: Solve for x
    x = 3,716,925,703.76/56,389.02
  6. Step 6: Final answer
    x = 65,915.77

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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.