Home / 48,312.40-72,434.65-21,281.91

Finding the Fourth Proportional to 48,312.40, 72,434.65 and 21,281.91

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Solution

The fourth proportional to 48,312.40, 72,434.65 and 21,281.91 is: 31,907.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,312.40 : 72,434.65 = 21,281.91 : x
  2. Step 2: Convert to fraction form
    48,312.40/72,434.65 = 21,281.91/x
  3. Step 3: Cross multiply
    48,312.40x = 72,434.65 × 21,281.91
  4. Step 4: Simplify right side
    48,312.40x = 1,541,547,595.77
  5. Step 5: Solve for x
    x = 1,541,547,595.77/48,312.40
  6. Step 6: Final answer
    x = 31,907.91

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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.